NEW ERA PUBLIC SCHOOL Assignments for Summer Vacation ...

NEW ERA PUBLIC SCHOOL Assignments for Summer Vacation (2021-2022)

Class: XII

Subject: English

General Instructions:

A. Attempt I in your English register.

B. Attempt II and III on A4 sized sheets.

C. III has to be filed and submitted in a folder.

D. All answers must be handwritten.

E. GS Project must be completed in minimum 12 pages.

F. Illustrations and pictures can be used to accentuate your GS Project.

I. Attempt all questions.

Q1. Your school, Modern Public School, is enacting the play “A Christmas Carol’ to raise funds

for the PM Cares Fund to aid the fight against COVID19. Prepare a poster giving the necessary

details. Word Limit: 50 words.

Q2. You are Sapna Singh/Sanjay Singh, the Secretary of Cultural Committee of your school.

Write a notice in about 50 words inviting students to participate in the Annual Day of the school

to be organised next month.

Q3. You are extremely disturbed by the plight of the daily wage labourers, who are forced to

leave the city because of the pandemic. Write an article highlighting their condition and express

your concern. Sign yourself as Khoshali Bhardwaj/ Kaushal Bharadwaj. Word limit: 150-200

words.

Q4. . You are Kamala/Kamal of 10 Civil Lines Extension, Chanakyapuri, New Delhi. You are

happy with the government’s decision to help the world, especially the poor countries, by sharing

its resources during this crisis. While this has earned India a lot of goodwill, it has also created a

temporary scarcity of resources in the country itself. Write a balanced letter to the Editor, The

Times of India expressing your opinion. Word Limit-120 words.

Q5. A debate competition on “It is important to guard Indian culture in the mess of global

cultures today” has been hosted by your school. You are Anil/Anita, participating. Write a debate

in favour or against this topic so that your manoeuvre is well tested and acclaimed by the

audience. Word limit: 150-200 words.

II. Art Integration Activity

Imagine yourself to be Franz from the story The Last Lesson. Your teacher, M Hamel has

tasked you with the responsibility of bringing out the last edition of the school magazine, named

Vive La France before the Prussians take over. Use your imagination and creativity and create

the magazine (minimum 4 pages).

III. GS Project

1. 12 A - Social Media: Impact on Human Behavior and Society

2. 12 B - Gender Stereotyping in Commercial Advertisements

3. 12 C – Nationalism Vs Globalization

4. 12 D – Forced Migration-An International Crisis

5. 12 E – Mental Health- A Taboo Subject in India?

6. 12 F – Artificial Intelligence- The Future or the End of the Human Race?

SUBJECT: MATHEMATICS

(A) Assignment (To be done in Mathematics Register)

Q1. Set A has 3 elements and set B has 4 elements. Find the number of injective mappings

that can be defined from A to B.

Q2. Check whether a relation R = {(a, b): a< b3, a, b Є N} is transitive or not. Justify.

Q3. Is the function f: N→ 𝑁 given by f(1) = f(2) =1and f(x) = x -1, for every x > 2

one one ? Justify.

Q4. If f(x) = |x| and g(x) = [x-1] where [ ] denotes greatest integer function, find fog (-2.5)

Q5. R = {(a, b) : a + b = 6, a, b Є {1, 2, 3, 4}}. Write range of R.

Q6. Write the domain of f(x) = 1

𝑥2− 4

Q7. Write the range of f(x) = 𝑥−1

| 𝑥−1| .

Q8. Let R be relation defined on R as R = {(a, b): |a-b| is divisible by 5}. Show that R is an

equivalence relation.

Q9. Let A = R – {3} and B = R – {1}. Let f: A → B be defined as f(x) = 𝑥−2

𝑥−3

Find g: B → A such that fog = gof = I

Q10. Let R be relation defined on AXA, where A= {1, 2, 3-----,9} as R = {(a, b)R(c, d)

iff ad(b + c)= bc (a + d}. Show that R is an equivalence relation.

Q11. Find the number of all the possible one-one functions from set A = {3, 5, 7} to itself.

Q12. Let f be the greatest integer function and g be the absolute value function, find the value of

(gof) 5 5

( )3 3

fog

.

Q13. If f(x) = 2x-3, write f-1(3)

Q14. Consider f : R+ (9, ) given by f(x) = 5x2 + 6x 9. Prove that f is invertible with

f1(y) = 5

3554 y.

Q15. Show that the function f : R → R defined by 2

( ) , ,1

xf x x R

x

is neither one-one nor

onto.

Q16. If A = [ -1 2 -5] and BT = [ 2 -1 7], find AB.

Q17. If A = 1 1

2 1

, B =

1

1

a

b

and (A + B)2 = A2 + B2 then find the values of a and b.

Q18. If A = [1 2 32 3 1

] , 2A −B = [−1 5 35 6 0

] , find B.

Q19. If [2x 3 ] [1 2

−3 0] [

𝑥3

] = 0, find x.

Q20. If A = [ 4 2−1 1

], prove that (A – 2I) (A – 3 I) = 0

Q21. If [0 −5 𝑎𝑏 𝑐 32 𝑑 0

] is skew symmetric, find a, b, c and d.

Q22. If [0 2𝑏 −23 1 3

3𝑎 3 −1] is symmetric, find the value of 9a2 – 4b2

Q23. If A = [ 2 3−1 2

] and f(x) = x2 – 4x + 7, show that f(A) = 0 and use it to find A3.

Q24. Solve for x and y where [ 𝑥 𝑦3𝑦 𝑥] [

12

] = [35

]

Q25. Express the following matrices as sum of symmetric and skew symmetric matrices.

i) [3 −41 −1

] ii) [3 2 54 1 30 6 7

]

Q26. If A = [1 2 33 −2 14 2 1

] then show that A3 – 23A – 40I = 0

Q27. If A = ,a b

c d

find determinant (A. (adj. A)).

Q28. If A =

1

2

3

, B = [–2 –1 –4], verify that (AB)´ = B´A´.

Q29. Using elementary row transformations, find the inverse of the following matrix:

2 1 4

4 0 2

3 2 7

Q30. If points (2, 0), (0, 5) and (x, y) are collinear, using determinants, show that 12 5

x y .

Q31. If for matrix A, |A| = 2, find |5A|, where matrix A is of order 2 × 2.

Q32. If =

1 2 3

2 0 1

5 3 8

then write the minor of element a22, a12 and a23

Q33. Find the matrix A, such that 2 1 3 2 1 0

.3 2 5 3 0 1

A

Q34. If A =

1 1 1

2 1 3 ,

1 1 1

find A–1 and use it to solve the following system of equations:

x + 2y + z = 4, –x + y + z = 0, x – 3y + z = 2

Q35. Given two matrices A =

1 1 0

2 3 4

0 1 2

and B =

2 2 4

4 2 4

2 1 5

verify that BA = 6I.

Use the above result to solve the following system of equations:

x – y = 3; 2x + 3y + 4z = 17; y + 2z = 7.

(B) Practical Activities (To be done in Mathematics Practical file).

(i) Relation is symmetric but neither reflexive nor transitive.

(ii) Relation is an equivalence relation.

(iii) Function which is not one-one but onto.

(iv) Function which is one-one but not onto.

SUBJECT: BIOLOGY

General Instructions

1. All questions are compulsory.

2. Students are required to do this assignment in the class work notebook.

3. All students will complete their Biology practical file work as per the

instructions given and data shared.

4. The Biology project report is to be completed and soft copy to be mailed as

per discussion .

5. Art integration project:

Students are required to draw the following diagrams from NCERT Biology

textbook on A4 size drawing sheets:

(a) A typical anatropous ovule

(b) A mature embryo sac

(c ) L.S of pistil

(d) Stages of embryo development in a dicot plant

Assignment

CH 1: REPRODUCTION IN ORGANISMS

Q1.How do the following organisms reproduce?

a) Paramecium b) Penicillium

Q2. Which part of banana and ginger plants are used for vegetative propagation?

Q3.In Bryophyllum, leaf margins show green structures. What are these? Name another plant

having such structure.

Q4. Give term for the condition in which a single organism possesses both sex organs.

Q5.Why does hilly areas of Kerala, Karnataka and Tamil Nadu transform into blue Stretches that

attracts many tourists?

Q6. Differentiate between homogametes and heterogametes.

Q7. What regulates the reproduction processes and the associated behavioral expressions in

organisms?

Q8. Why a moss plant produces a large number of antherozoids but relatively only a few egg

cells?

Q9. (a) State the difference between meiocyte and gamete with respect to chromosome number.

(b) Why is a whiptail lizard referred to as parthenogenetic?

CH 2: SEXUAL REPRODUCTION IN FLOWERING PLANTS

Q10.What is agamospermy?

Q11.Can snails pollinate the flowers? What do you call such a pollination?

Q12. In some species of Asteraceae and grasses, seeds are formed without fusion of gametes.

Give the scientific term for such type of reproduction.

Q13. How are pollen stored in a pollen bank?

Q14. In the embryos of a typical dicot and grass, which are the true homologous structures?

Q15. State two differences between Perisperm and Pericarp.

Q16.Draw L.S of anatropous ovule of an angiosperm and label a) Nucellus b) Secondary

nucleus.

Q17. (a) Name the organic material exine of the pollen grain is made up of. How is this

material advantageous to pollen grain?

(b) It is observed that it does not form a continuous layer around the pollen grain. Give

reason.

(c) How are pollen banks' useful?

Q18. (a) Can a plant flowering in Mumbai be pollinated by pollen grains of the same

species growing in New Delhi? Provide explanations to your answer.

(b) Draw the diagram of a pistil where pollination has successfully occurred.

Label the parts involved in reaching the male gametes to its desired destination.

Q19. Explain any three advantages the seeds offer to angiosperms.

Q20. An angiospermic plant, before formation of microspore sporogenous tissue undergoes cell

division

(a) Name the type of cell division.

(b) What would be the ploidy of the cells of tetrad.

Q21. How does the floral pattern on Mediterranean orchid Ophrus guarantee cross pollination?

Q22. What relationship exists between a species of moth and Yucca plant?

Q23. (i) Write the characteristics features of anther, pollen and stigma of wind pollinated

flowers.

(ii) How do flowers reward their insect pollinators? Explain.

SUBJECT: PHYSICS


1. All questions are compulsory.

2. Students are required to do this assignment in the class work notebook.

3. All students will complete their Physics practical file work as per the

instructions given and data shared.

4. Art Integration activity- Students are required to draw the circuit diagram of Ohm’s

law and explain its working through PPT.

Very short questions-(1 mark)

1. Ordinary rubber is an insulator. But the special rubber tyres of aircrafts are made slightly

conducting. Why is this necessary?

2. An inflated balloon is charged by rubbing with fur. Will it stick readily to a conducting

wall or to an insulating wall? Give reason.

3. Why is electric field zero inside a charged conductor?

4. A spherical balloon carries a charge that is uniformly distributed over its surface. As the

balloon is blown up and increases in size, how does the total electric flux coming out of the

surface change? Give reason.

5. What happens if the plates of a charged capacitor are suddenly connected by a conducting

wire?

6. Why is it that a man sitting in an insulated metal cage does not receive any shock when it

is connected to a high voltage supply?

7. A force F is acting between two charges placed some distance apart in vacuum. If a brass

rod is placed between these two charges, how does the force change?

Short questions- (3marks)

8. An electric dipole free to move is placed in a uniform electric field. Explain along with

diagram its motion when it is placed (a) parallel to the field (b) perpendicular to the field.

9. Two point charges having equal charges separated by 1 metre distance experience a force of 8

N.

What will be the force experienced by them, if they are held in water at the same distance?

(Given, Kwater= 80 ).

10.

The flux of the electrostatic field, through the closed spherical surface S', is found to be four

times

that through the closed spherical surface S. Find the magnitude of the charge Q

11. If the total charge enclosed by a surface is zero, does it imply that the electric field

everywhere on the surface is zero? Conversely, if the electric field everywhere on the

surface is zero, does it imply that the charge inside is zero?

Long answers-(5 marks)

12. Define the terms (i) absolute permittivity of free space (ii) dielectric strength of a

dielectric.

Derive an expression for the electric field due to an infinetly plane sheet of charge.

13. Define electric flux and write its S.I. unit.

“Gauss’s law in electrostatics is true for any closed surface, no matter what its shape or

size is.” Justify this statement with the help of a suitable example,

14. A dipole is made up of two charges +q and –q separated by a distance 2a. Derive an

expression for the electric field E due to this dipole at a distance r from the centre of the

dipole on the equatorial plane. Draw the shape of the graph between E and r when r>> a.

15. Eight identical point charges of q coulomb each are placed at the corners of a cube of

each side 0.1m. Calculate the electric field at the centre G of the cube . Calculate the field

at the centre when one of the corner charges is removed.

SUBJECT: CHEMISTRY

General Instructions:-

1. Art Activity: Make the project on the given topic without filling in the observation table in the

form of a power point presentation.

2. Learn the scheme for inorganic salt analysis.

3. Write the following practicals in your practical file:

- Scheme for salt analysis.

- Titration I & II

4. Write the answers for the following questions asked in chemistry viva (to be done in the class

notebook)

- Titration:

1. Define:

(a) end point. (b) titrand (c) titrant

(d) standard solution (e) indicator (f) volumetric analysis

2. Differentiate, with examples, between primary and secondary solutions.

3. Give reasons:

(a) The burette and pipette must be rinsed with the solution they are filled.

(b) The last drop of the solution must not be blown out of pipette.

(c) We do not rinse the titration flask with the respective solution.

(d) We make sure that there are no air bubbles in the burette before carrying out titration.

(e) Titration is always repeated thrice.

4. What is the least count and maximum reading of the burette?

5. Which meniscus is read in coloured and colourless solutions? Give reason.

6. Write the formula to calculate the strength, with unit, of the solution.

7. Suggest some sources of error in titration.

Salt Analysis:

1. Define:

(a) solubility product (b) common ion effect (c) salt hydrolysis

2. What is the role of common ion effect and solubility product in group II, IV and V analysis?

3. What is the difference between solubility product and ionic product?

4. Write the formula for the following complexes:

(a) Nesseler’s reagent (b) Chromyl chloride

(c) Brown ring in NO3- test (d) Yellow precipitate in PO4

3- test

(e) Purple colouration in S2- test (f) Blue colour in NO2- test

(g) White precipitate in PO43- test (h) Ammonium molybdate

(i) Brown precipitate in Cu2+ test (j) Prussian blue colouration in Fe3+ test

(k) Blood red colouration in Fe3+ test (l) Red precipitate in Ni2+ test

SUBJECT-ECONOMICS

PART A

Complete the text questions of the Chapters covered in Class in your notebook and revise for the

forthcoming Unit tests.

PART B

ART INTEGRATION ACTIVITY

The students may choose any one of the following options:

a. Make a newsletter which includes all the types of news that you read in a daily

newspaper taking care to avoid negative news and focussing more on articles with an

economic implication.

b. Draw a poster depicting the Indian economy on the eve of independence.

c. Write a poem/rap on the current problems facing the Indian economy.

d. Prepare a Kahoot quiz on the concepts covered so far in class.

e. Choose any two famous Indian economists and present their contributions through

pictures and text on A4 sheets.

PART C

Project presentation-Prepare a project according to the guidelines mentioned below.

PROJECT GUIDELINES

Format for presentation of the Project

a. External cover page

b. Acknowledgement

c. Preface

d. Index (with page numbers)

e. Introduction to the topic

f. Historical Perspective

g. Details of the topic (causes, consequences/remedies)

h. Diagrammatic explanation (if any)

i. Numerical explanation (if any)

j. Pros and Cons of the economic event/happening (if any)

k. Application of the concept

l. Impact on Indian Economy

m. Impact in Corona Pandemic (if any)

n. Newspaper articles

o. Students’ own views/perception/opinion and learning from the topic

p. Feedback Sheet

q. Bibliography

Mode of presentation of the Project

a. Students must strive to present the ideas in an innovative manner. The content should be

well-explained by integrating art and technology.

b. The project must be neat and well-presented and must be completely handwritten. No

whiteners to be used or written matter to be crossed out. In case of any mistakes, redo the

sheet.

c. Project should be of 3,500-4,000 words ie about 30-35 pages. (excluding diagrams and

graphs).

d. The cover page, certificate of authenticity and feedback sheet shall be mailed to you and

their printouts will be used.

e. The project concepts need to be supplemented by newspaper articles pasted on the blank

side of the paper with the relevant information written on the adjacent page.

f. The presentation can be supported by newsletters, charts, brochures, quotes, cards,

collage, mind maps etc.

Marking Scheme

1. Relevance of the topic 3 marks

2. Knowledge Content/Research Work 6 marks

3. Presentation Technique 3 marks

4. Viva_ voce 8 marks

Total 20 marks

Suggested Topics

1. Trade wars and their implications

2. Agriculture in India

3. Infrastructure and its role in development

4. Inflation-causes and consequences

5. Shift towards a cashless economy

6. Aviation industry in India

7. Sustainable development - need of the hour

8. Education in India-Changes and implications

9. Impact of sports on Indian economy

10. Stock prices and their impact on economy

11. Human Resource Development

12. US Iran sanctions

13 Bangladesh - the next Asian tiger

14. Food Security/ Food wastage and its implications

15. Organic Farming-Rising trend

16. Waste Management and its importance

about:blank

17. Rain water harvesting - its importance

18. Alternative fuels for sustainable development

19. Impact of Government schemes on Indian economy

20. Kisan Credit Card and Rural credit

21. Digital India - the way ahead

22. Entertainment Industry and Indian Economy

23. Small businesses- Pre and Post Covid Period

24. Food Processing Industry in India.

25. Information Technology and its Role in India’s Economic Development

26. Role of NBFCs in economic development.

27. Any other topic approved by the subject teacher

A thorough research should be done on the topic from various sources and a draft of the relevant

material is to be prepared in a word document. It should be organised into subheads as per the

contents suggested above. Mail the document and make the project file on A4 sheets after

approval from the teacher. (Do not use glitter or sparkles or irrelevant stickers in the file. It

should be aesthetic, well decorated with sketches, images, graphs, diagrams, news articles,

cartoons on coloured sheets with creative paper cutting and not cluttered or bulky)

SUBJECT: ACCOUNTANCY


(i) The students are required to attempt assignment in Part A in a class register only.

(ii) Show the working notes clearly.

PART A

Chapter: Financial Statements of Not-for-Profit Organisations

1. How would you treat the following items in the case of a ‘Not-for-profit’ organisation?

(i). Tournament Fund Rs. 40,000. Tournament Expenses Rs. 14,000. Receipts

from Tournament Rs. 16,000.

(ii). Table Tennis match expenses Rs. 4,000.

(iii). Prize Fund Rs. 22,000. Interest on Prize fund Investments Rs. 3,000. Prizes

given Rs. 5,000. Prize fund Investments Rs. 18,000.

(iv). Receipts from Charity Show Rs. 7,000. Expenses on Charity Show Rs. 3,000.

2. From the information given below, prepare Receipts and Payments Account of Friends

Club, Delhi, for the year ended 31st March, 2020:

Cash Balance on 1st April, 2019 Rs. 44,000; Subscriptions Rs. 3,76,000; Donations Rs.

80,000; Entrance Fees Rs. 43,000; Rent Realised from Club Hall Rs. 52,500; Electricity

Charges Rs. 34,400; Taxes Rs. 5,000; Salaries and Wages Rs. 2,15,000; Honorarium to

Secretary Rs. 25,000; Interest Received on Investments Rs. 29,500; Printing and Stationery

Rs. 3,500; Petty Expenses Rs. 9,000; Insurance Premium Paid Rs. 3,100.

3. How are the following dealt with while preparing the final accounts of a sports club for

the year ended 31st March, 2020?

Dr. RECEIPTS AND PAYMENTS ACCOUNT

for the year ended 31st March, 2020

Cr.

Receipts Rs. Payments Rs.

To Sale of Sports Materials 26,000 By Creditors for Sports Materials 61,000

(Book value Rs. 20,000) By Cash purchase of Sports Materials 10,000

Additional information:

As at 31st March, 2019 (Rs.) As at 31st March, 2020 (Rs.)

Sports Materials 20,000 25,000

Creditors for Sports

Materials

7,000 15,000

4. How are following items shown in the financial statements of Not-for-Profit Organisation?

(i) Tournament Fund Rs. 2,00,000; Tournament Expenses Rs. 60,000; Receipts from

Tournament Rs. 80,000.

(ii) Billiard Match Expenses Rs. 25,000.

(iii) Receipts from Cinema Show Tickets Rs. 50,000; Expenses on Cinema Show Rs. 15,000.

(iv) Prize Fund Rs. 1,00,000; Interest on Prize Fund Investments Rs. 10,000; Prizes awarded

Rs. 20,000; Prize Fund Investments Rs. 80,000.

(v) Prize Fund Rs. 80,000; 10% Prize Fund Investments on 1st April, 2019 Rs. 80,000;

Donation for Prize Fund Rs. 12,000; Prizes awarded Rs. 14,000; Interest received on 10%

Prize Fund Investments Rs. 4,000.

(vi) Expenditure on construction of Pavilion during the year was Rs. 6,00,000. The

construction work is in progress and not yet completed. Pavilion Fund as on 31st March,

2019 Rs. 8,00,000. Donation for Pavilion received on 15th September, 2019 Rs. 10,00,000;

Capital Fund as at,31st March, 2019 Rs. 20,00,000.

5.Following is the extract from the Receipts and Payments Account of a sports club. You are

required to show different items in the Income and Expenditure Account and Balance Sheet

of the club for the year ended 31st March, 2020 giving effect to additional information given

below:

RECEIPTS AND PAYMENTS ACCOUNT

Dr. for the year ended 31st March, 2020 Cr.


To Donation for Pavilion 10,00,000 By Governor's Party Expenses 2,40,000

To Contribution for

Governor's Party

2,00,000

To Donations 5,000

Additional Information:

(i) Amount spent on Pavilion Rs. 20,00,000. The construction work is in progress

and has not yet completed.

(ii) Outstanding subscriptions for Governor's Party Rs. 30,000.

(iii) Capital Fund as at 31st March, 2019 Rs. 10,00,000.

(iv) Pavilion Fund as at 31st March, 2019 Rs. 40,00,000.

6.Subscriptions received during the year ended 31st March, 2020 are:

Rs. Rs.

For the year ended 31st March, 2019 4,000

For the year ended 31st March, 2020 2,11,000

For the year ended 31st March, 2021 8,000 2,23,000

There are 450 members, each paying an annual subscription of Rs. 500. Rs. 4,500 were in

arrears for the year ended 31st March, 2019 in the beginning of the year ended 31st March,

2020. Calculate subscriptions to be shown in Income and Expenditure Account for the year

ended 31st March, 2020 and also show treatment of subscriptions in the Income and

Expenditure Account and Balance Sheet.

7. On the basis of the following information, calculate amount that will appear against the

item 'Medicines Used' in the Income and Expenditure Account for the year ended 31st

March, 2019:

Particulars Amount

Opening Stock of Medicines Rs. 50,000

Closing Stock of Medicines Rs. 45,000 more than Opening Stock

Amount paid for medicines during the year Rs. 2,00,000

Opening Creditors Rs. 20,000

Closing Creditors 50% of Opening Creditors

8. On the basis of the following information, calculate amount that will appear against the

item 'Stationery Used' in the Income and Expenditure Account for the year ended 31st

March, 2020:

Particulars Rs.

Stock of Stationery as at 1st April, 2019 12,000

Creditors for Stationery as at 1st April, 2019 25,600

Amount paid for Stationery during the year ended 31st March, 2020 1,40,000

Stock of Stationery as at 31st March, 2020 23,200

Creditors for Stationery as at 31st March, 2020 24,000

9. How are the following items dealt with while preparing income and Expenditure

Account of a club for the year ended 31st March, 2020?

1st April, 2019 31st March, 2020

Outstanding Lockers' Rent Rs. 4,600 Rs. 6,300

Advance Lockers' Rent Rs. 3,000 Rs. 4,000

Lockers' Rent received during the year ended 31st March, 2020—Rs. 52,000.Prepare

income and Expenditure Account.

10. From the following Receipts and Payments Account of Accountants Club, prepare Income

and Expenditure Account for the year ended 31st March, 2020:

Dr. RECEIPTS AND PAYMENTS ACCOUNT

for the year ended 31st March, 2020

Cr.


To Cash in Hand (Opening) 45,000 By Salaries 4,95,000

To Cash at Bank (Opening) 12,60,000 By Stationery 89,700

To

Subscriptions

15,24,000 By Billiard Table 5,80,500

To

Donations

7,20,000 By investments 6,19,800

To interest on investments 18,000 By Miscellaneous Expenses 75,000

To Entrance

Fees

1,80,000 By Furniture 12,30,000

To interest Received from

Bank

63,000 By Insurance Premium 27,000

To Safe of Old Newspapers 9,000 By Cash in Hand (Closing) 33,000

By Cash at Bank (Closing) 6,69,000

38,19,000 38,19,000

(i) Subscriptions in arrears for the year ended 31st March, 2020—Rs. 1,35,000 and

Subscriptions received in advance during the year ended 31st March, 2020—Rs. 39,000.

(ii) Insurance Premium prepaid is Rs. 3,000.

(iii) The detail with respect to Stationery of Accountants Club is as follows:

Particulars 31st March, 1st April,

2020 (Rs.) 2019 (Rs.)

Stock of Stationery 30,000 5,000

Creditors for Stationery 40,000 26,000

Advance for Stationery paid in 2019-20 7,000 …

Advance paid for Stationery carried from 2018-19 5,000 …

PART B

Project Work:Prepare a project file on Specific Project i.e. Segment Reporting of a

particular company. It can be made individually or by a group of two students only (all

members of the group will submit their own file separately).

Key Instructions to be followed:

Project Layout:

(a) Project details – Specific Project.

(b) Student Information – Name, Class, Section, Roll No., School,

Year 2021- 22

(c) Acknowledgement (For format, refer Pg. P.3 of Text Book .i.e. Analysis of Financial

Statements)

(d) Certificate by Teacher (For format, refer Pg.P.3 of Text Book i.e. Analysis of Financial

Statements)

(e) Index sheet

(f) A sheet containing all the following information i.e name of the project, objectives of the

project, period of study, analytical tools used,source material.

(The project should be made on A4 size different coloured sheets and use coloured pens.)

PART C

Art Integration Activity

1. Prepare a Mind Map/Chart /Comic Strip on any one topic of the Financial Statements of Not-

for-Profit Organisations.

i) Features of Financial Statements of Not-for -Profit Organisations.

ii) Accounting treatment of important items of Income and Expenditure Account.

iii) Calculation of Subscription

You can use Scrap file or A-4 size-coloured sheets and coloured pens.

OR

Prepare an online quiz from the topic ‘Financial Statements of Not-for-Profit Organisations.’

SUBJECT: BUSINESS STUDIES


i. The assignment is divided into three parts, namely Part-A, Part-B and Part-C.

ii. All the questions given in Part-B must be attempted neatly in the business studies

class register only.

iii. The holiday homework of Business Studies contains very short, short answer and

long answer questions.

iv. Part-C consists of a compulsory art related activity to be completed by each student

during the vacations itself.

PART-A PROJECT WORK

All students have been allotted topics for their Business Studies project, which they are

supposed to prepare as per CBSE curriculum guidelines (2021-22)

The file carries a weightage of 20 marks in the final exam.

The projects must be neat and well presented and must be completely handwritten. No

whiteners to be used or written matter to be crossed out. In case of any mistakes, redo the

sheet.

The cover page, certificate of authenticity and feedback sheet shall be mailed to you and

their printouts will be used.

The total length of the project will be of 25 to 30 pages.

Mail the draft to the following mail ids for the approval first.

XII B, C- [email protected]

XII D, E- [email protected]

PART-B CASE STUDIES

Answer the following questions from Ch-Marketing (to be done in Class register)

Q1. Tanuj is a small entrepreneur involved in the manufacturing of hair wax. He finds that cost

of production of 100 gm of hair wax is Rs. 250. He has decided to keep a margin of 15% as

profit. Identify the function of marketing being performed by Tanuj. (1)

Q2. Sioz Ltd believes the philosophy which assumes that if an organization sells aggressively, it

will capture substantial market share. Which philosophy is followed by Sioz Ltd? (1)

Q3. A brand or part of a brand that is given a legal protection is called a brand mark. Defend or

refute. (1)

Q4. ‘Buy one get one free’ is printed on the label of the package of a mosquito repellant. State

the labeling function being performed by this statement. (1)

Q5. IL ltd is a school bag manufacturer company. Over the time, they have added features to the

school bags to improve the performance of the product and enhance profit maximization. They

added different compartments to keep books, registers and lunchboxes with water bottle holders

on both the sides of the bags.

(i) Identify the marketing management philosophy adopted by IL ltd

(ii) Explain the philosophy on the basis of (a) main focus and (b) means and ends. (3)

Q6 Identify what is being marketed in the following cases: (3)

a. The company is in the business of organizing music concerts all over the globe.

b. BSE publishing ‘Rising and falling of Stock Markets’ to create awareness among public.

c. Paytm offering e-platforms for payments.

Q7. Suzzaine bought a pain relieving ointment after seeing it being displayed in the chemist’s

shop. The ointment tube was packed in a cardboard box. Identify and explain the different levels

of packaging of the pain relieving ointment when it was purchased by Suzzaine. Also, explain

the level which is not present in the case with an example. (4)

Q8. Ayush had a garments business, specializing in jackets for all seasons. Though the jackets

were available at an affordable price, the business was not doing well. Riyaan, his eldest son,

suggested that they should undertake aggressive selling and promotional efforts to make the

customers buy the products. He believed that customers buy only when they are adequately

convinced and motivated for the same. Vivaan, his second son, believed that availability, low

price and aggressive selling techniques cannot ensure increased sales. He felt that customers

looked for products which were superior in quality and do not mind paying a high price for it.

So, he decided to manufacture good quality jackets at a separate production unit. He also

opened a separate outlet on the first floor of the showroom for the same. Very soon, the

business started flourishing. Identify, quote and explain the marketing philosophies followed

by Riyaan and Vivaan. (4)

Q9. Nancy was a student of Business Studies of class XII. Her father was a farmer who grew

different varieties of rice and was well-versed about various aspects of rice cultivation. He was

also selected by the government for a pilot-project on rice cultivation. As a project-work in

Business Studies she decided to study the feasibility of marketing good quality of rice at a

reasonable price. Her father suggested her to use internet to gather customers’ views and

opinions. She found that there was a huge demand for packaged organic rice. She knew that there

were no pre-determined specifications in case of rice because of which it would be difficult to

achieve uniformity in the output. To differentiate the product from its competitors, she gave it

the name of ‘Malabari Organic Rice’ and classified it into three different varieties namely-

Popular, Classic and Supreme, based on the quality. She felt that these names would help her in

product differentiation.

Identify, quote and explain the three functions of marketing, with reference to the above

paragraph. (6)

Q10. Zeta Pharmaceutical Company was the pioneer in developing a medicine for Leukemia.

The company launched the product in the market. The total cost of producing the medicine was

₹150 per tablet. But in the absence of competition, the company decided to charge price of ₹800

per tablet to earn huge profit. The patients were willing to pay any price for this life saving

medicine. However, the patients belonging to weaker section of society found it difficult to buy

it. On receiving several complaints, the government fixed the upper limit of price i.e. MRP of

₹170 per tablet.

The above para described a number of factors that affect an important element of marketing mix.

Identify, quote and explain any four factors (6)

PART-C ART INTEGRATION ACTIVITY

Each student has to choose any one of the following compulsory art related activity:

i) Wall Hanging– Chapter: Organizing

Show the organization structure of ‘Tata Company’ in the form of a wall hanging.

ii) Product designing activity - Chapter: Marketing

Design any fast moving consumer product with complete labeling, branding and

levels of packaging. Students can use their creativity to design a product of their

choice.

iii) PPT- Chapter: Financial Markets

Power point presentation on e-IPOs in India with case studies of any two companies.

iv) Collage Making- Chapter: Business Environment

On a chart paper prepare a collage depicting the impact of Covid-19 on various

elements of business environment. (Economic, Social, Legal, Technological,

Political)

v) Comic Strip- Chapter: Consumer Protection

Prepare comic strip depicting consumer rights and duties.

vi) Video Making- Chapter: Directing

Take clippings/scenes/songs from movies to show ‘motivation’ or ‘leadership’ as the

elements of Directing. Explain the concept/aspect of 'motivation’ or ‘leadership’

being referred to in these clippings.

SUBJECT: INFORMATICS PRACTICES (065)

Part A : Assignment (To be done in class Register)

Q1. What will be the output of the following?

import pandas as pd

s = pd.Series([10,20,30,40,50,60,72,74],index=['a','b','c','d','e',’f’,’g’,’h’])

s1=pd.Series([8,7,6,5,4,3,2,1], index=[‘a’,’b’,’c’,’d’,’e’,’f’,’g,’h’])

(i) s[‘c’]+20

print(s)

(ii) print(s*10)

(iii) print(s!=35)

(iv) s[‘a’]=5

print(s)

(v) print(s-s1)

(vi) print(s[s<40])

(vii) print(s1[‘c’])

(viii) print(s1[ : :-1])

(ix) print(s[2:])

(x) print(s[: : 2])

(xi) s[‘d’]=s[‘d’]+200

print(s[‘d’])

(xii) print(s[ : 4])

(xiii) print(s1>2)

(xiv) print(s1[: : -2])

(xv) print(s*s1)

Q2. Consider the Series defined above (named s and s1) and write commands to do the following:

(i) To display the data for indexes c, d and e from series s

(ii) To display the indexes of the series S1

Q3. Define the following:

i. NaN

ii. Data Structure

iii. Pandas

iv. List

v. Dictionary

Q4.Differentiate between the following:

i. Series and Dataframe

ii. iloc() and loc()

iii. head() and tail()

Q5. Write a program to create dataframe to store the following details using the index values as

10,20,30,40 and 50.

i. Write a code to display the details of soft toys using loc.

ii. Write a code to display all item names.

iii. Write a code to display all item names along with unit price.

iv. Write a code to display the first 3 records from the dataframe.

v. Write a code to display the last 4 records from the dataframe.

vi. Write a code to display the unit price and discount of items B26 and C80.

vii. Write a code to insert a column named “qual” to store the quality specifications which

are like a+, b etc. for every row.

viii. Write a code to delete column item (using del).

ix. Write a code to delete column discount (using pop).

x. Write a code to delete unit price and discount columns from the dataframe.

Part B : Practical questions to be done in computer using python interface and mail its

complete pdf file with python code and its output screenshots.

1. Write a program to create a dataframe of the following data:

2. Write a program to create a series and perform tail( ) function to retrieve last 5 records.

3. Write a program to create a dataframe and then add a new column in the existing

dataframe.

4. Write a program to create a series with index=100,101,102,103.

5. Write a program to create 2 data frames and then take out their difference.

6. Write a program to create a series and then use loc and iloc function to retrieve values.

7. Write a program to create a series and then retrieve the values which are smaller than 5.

8. Write a program to create a dataframe and then use "pop" and "del" to delete the

columns.

9. Write a program to create a series and then multiply it by 4.

10. Write a program to create a series and perform head ( ) function and retrieve first 3

records.

11. Write a program to create a series with 10 integers and sort them.

12. Write a Pandas program to compare the elements of the two Pandas Series.

Sample Series: [12, 40, 61, 8, 10] and [1, 3, 5, 77, 90]

13. Write a program to create an empty series.

14. Write the python code to create both series given and also write the command to display

the product of series S1 and S2.

Given the following Series S1 and S2:

S1: 0 100

1 200

2 300

S2: 0 20

1 400

2 60

15. Write a program to create an empty dataframe.

Part C: Art Integration Activity

1. Create a powerpoint presentation on Python programming specifying its uses and

applications in the real world.

2. Create a collage of various networking devices like modem, repeater, hub etc. using

any software like photoshop, word, powerpoint.

SUBJECT: FASHION STUDIES

Project 1:

Collect pictures of the following and paste them on an A4 size sheet and create folder /style

file or create a Power Point presentation.

Source: Collect pictures of the following from internet, magazines or newspapers.

• Women’s wear

• Necklines and their variations

• Different kinds of collars

• Sari blouses

• Skirts

Project 2:

Body adornment: body painting, tattooing, scarification

Procedure:

• Refer books, magazines and internet to find out about a primitive or tribal community,

either from your country or any other country.

• Find pictures of different decorations and body adornment which typify the culture of this

community.

Project 3:

Draped garments in ancient Western and Asian civilizations

Procedure:

• Refer books, magazines and internet to identify pictures of draped garments according to

the civilization.

• Make a step-by-step drawing of the process of draping a garment. This can be done either

on sheets or in the notebook.

Project 4:

Industrial Revolution during the British Raj in India

Procedure:

• Identify specific categories of textiles and clothing worn Europe, especially England

which were based on Indian exports during the Industrial Revolution.

• Refer books and internet to do the following:

a) Find an article on the impact of restrictive rules on Indian weavers during the British

Raj.

b) Identify pictures of European garments which used Indian textile and prints.

c) Use photocopies of visuals and stick them in a notebook with suitable labels indicating

the product (textile and clothing), reference name (if any) and year.

Revise the following chapters thoroughly:

1. Factors affecting clothing: Protection,

2. Draped costumes

3. Industrial Revolution

SUBJECT: PSYCHOLOGY

1. Students will work on their Practical files.

2. They would revise Chapter 1 and 2 and complete the assignment of Chapter 1.

3. Art Integration

a) Find any person whom you would like to interview. It could be a frontline worker like

your healthcare provider or teacher. Prepare 5-6 questions that you would like to ask

him/her about the way(s) in which the pandemic has affected him/her, how he/she has

coped up with the situation, any specific ways or strategies used and any professional

help taken.


Interview must be taken online and not face to face. It must be recorded.

At the end of the interview, sum it up by giving concluding remarks.

Make sure you read the following topics beforehand.

Psychology textbook Class XI (Interview – Pg 33,34 ; Ethics in Psychological research

Pg 40)

Psychology textbook Class XII (Interview –Pg 4,188-189 and Coping strategies Pg 61)

Prior permission of the interviewee must be taken and he/she duly informed that the

interview would be recorded. The interview must not exceed 4-5 min.

The link of the recording to be shared on [email protected]

4. Case Profile

Do research on the topic that you have selected for your case profile. Developing a

case profile would primarily involve the use of qualitative techniques, such as

observation, interview, survey, etc.

Some examples of topics for the case profile could be an individual who has excelled

in areas like sports, academics, music, etc. or having special needs like learning

disability,autism, Down’s syndrome, etc. or those with interpersonal social problems,

i.e. poor body image, obesity, temper tantrums, substance abuse, not getting along

with peers, withdrawn, etc. Use qualitative methods like observation and interview to

collect information from as many sources as you can like parents, friends, teachers etc.

Also use some quantitative methods like various psychological tests to collect

information regarding subject’s psychological attributes like intelligence, aptitude,

personality etc.

Suggested Format for Preparing a Case Profile

It is suggested that the case be developed in a narrative format along the following

points:

1. Introduction

• A brief introduction of about one or two pages presenting the nature of the problem,

its incidence, likely causes, and possible counselling outcomes.

• A half page (brief) summary of the case.

2. Identification of Data

• Name (may be fictitious)

mailto:[email protected]

• Diagnosed Problem

• Voluntary or Referral (i.e., by whom referred — such as teacher, parent, sibling, etc.)

3. Case History

• A paragraph giving age, gender, school attended, class (grade) presently enrolled in, etc.

• Information about socio-economic status (SES) consisting of information about

mother’s/father’s education and occupation, family income, house type, number of

members in the family— brothers, sisters and their birth order, adjustment in the family,

etc.

• Information about physical health, physical characteristics (e.g., height and weight), any

disability/illness (in the past and present), etc.

• Any professional help taken (past and present), giving a brief history of the problem,

attitude towards counselling (indicating the motivation to seek help, etc.).

• Recording signs (i.e., what is observed in terms of facial expressions, mannerisms, etc.)

and symptoms(i.e., what the subject reports, for example, fears, worry, tension,

sleeplessness, etc.).

Concluding Comments

A summary of the case should be written in the end.

SUBJECT: POLITICAL SCIENCE

Prepare a project file on any of the topics from the syllabus. It must be done individually.


1. The project should be made on A4 size sheets and should be submitted in a ring file.

2. The PPT/ Project file should contain at least 45 slides or sheets.

3. Pictures, graphs, maps, cartoons, pie charts, flow charts, newspaper clippings, collage

should be used wherever possible.

4. Comparative study – The project should be interdisciplinary.

Note: Your project can be supported with Role play, Skit, Presentation, Model, Field survey,

Mock Drill/ Mock event etc. This is optional, subject to the current situation.

Project Layout:

1. Cover Page:

(a) Project details - Title

(b) Student Information – Name, Class, Section, Roll No., School Year.

2. Table of contents

3. Executive Summary – Not more than 150 words.

4. Relevant information / Background

5. Summary and Conclusion

6. Appendix

(a) List of references

(b) Bibliography

Revise the following chapters thoroughly:

1. The Cold War Era

2. End of Bipolarity

3. Maps and cartoons from the above chapters.

SUBJECT : HISTORY

THEME - ONE

BRICKS, BEADS AND BONES

THE HARAPPAN CIVILIZATION

QUESTIONS OF 1 MARK EACH

A. Multiple choice questions:

1. The Great Bath is situated in

a. Harappa

b. Mohenjodaro

c. Nageshwar

d. Chanhudaro

2. The first Director-General of ASI was

a. G.F Dales

b. R.E.M Wheeler

c. John Marshall

d. A Cunningham

3. Terracotta models of the plough have been found at sites in

a. Cholistan and Banawali

b. Kalibangan and Shortughai

c. Harappa and Mohenjodaro

d. Chanhudaro and Lothal

4. Nageshwar and Balakot were specialized centres for making

a. Bricks

b. Cloth

c. Shell objects

d. Figurines

5. Harappan seals have been found in

a. China

b. Arabia

c. Egypt

d. Mesopotamia

B. Fill in the blanks:

1. Traces of canals have been found in ________________region of Afghanistan during the

Harappan Civilisation.

2. Harappan site which was discovered first was _____________and the most well-known site

was____________.

3. The two divisions of settlement in Mohenjo-Daro are ________and _____.

4. Roads and streets were laid out in __________________pattern in the lower town of

Mohenjodaro.

5. Archaeologists have found evidence of a ploughed field at __________.

QUESTIONS OF 3 MARKS EACH:-

1. How did Cunningham understand archaeological finds? Explain why Cunningham could not

understand the significance of the Harappan seals?

2. Describe briefly what has been found in burials at the Harappan sites?

3. Describe how archaeologists classify their finds?

4. Describe the various ways in which the Harappans procured material for craft production?

Illustrate your answer with examples.

Or

Explain the strategies for procuring materials by the Harappans for craft production?

5. Describe how artifacts help in identifying social differences during the Harappan period?


1. How was Harappan civilization discovered? Were there any shortcomings in this discovery?

How were they rectified?

2. Under what circumstances did John Marshall announce the Indus Valley Civilization? What

were the shortcomings of his excavations? How were they rectified?

3. Critically discuss how social differences can be traced in the Harappan civilization?

4. Discuss how Harappans procured material for craft production from within the subcontinent

and beyond?

SOURCE BASED QUESTIONS:-

1. Page -- 4

Processing of food……………………………………………………….in the kitchen.

Q1. What were the vessels of Mohenjodaro made of?

Q2. What were saddle querns? What were they made of?

Q3. Classify the saddle querns found at Mohenjo-Daro. Why were some of them called curry

stones?

2. Page -- 7

The most ancient…………………………………………………..of burnt bricks.

Q1. Who was Ernest Mackay?

Q2. Describe the drainage system of Mohenjo-Daro?

Q3. Why were little heaps of sand found near the drains?

THEME - TWO

KINGS, FARMERS AND TOWNS

QUESTIONS OF ONE MARK EACH

A. Multiple choice questions:

1. The capital of Magadha was

a. Taxila

b. Pataliputra

c. Ujjayini

d. Tosali

2. Large landowners of South India were known as

a. Vellalar

b. Uzhavar

c. Adimai

d. None of the above

3. Prabhavati Gupta was the daughter of

a. Chandragupta Maurya

b. Chandragupta I

c. Chandragupta II

d. Samudragupta

4. The first gold coins in ancient India were issued by the

a. Mauryas

b. Kushanas

c. Yaudheyas

d. Guptas

5. The Brahmi and the Kharosthi scripts were deciphered by

a. John Marshall

b. A Cunningham

c. G.F Dales

d. James Prinsep

B. Fill in the blanks:

1. Name the two scripts deciphered by James Prinsep ______.

2. Sanskrit texts composed by Brahmanas that laid down norms for rulers and society during 6th

century BCE were known as __________.

3. Name the first capital of Magadha that lasted till fourth century BCE

___________ .

4. The coastal state of Orissa called ____________________was conquered by Asoka.

5. Parts of __________________were composed by Chanakya, minister of

Chandragupta.


1. What were Mahajanapadas? Describe their organization?

2. Name the important Mahajanapadas and give their salient features.

3. Describe the administrative structure of the Mauryan Empire? (Salient features)

4. Explain the concept of divinity of kings in ancient India?

5. Explain how ordinary people perceived their kings?


1. Describe the system of land grants in ancient India. What was the purpose of these land

grants?

2. Explain the development of coins in ancient India? What was their significance?

3. Explain how inscriptions are deciphered and understood?

4. Discuss the notions of kingship that developed in the post Mauryan period?

5. Describe the agricultural strategies followed during the Mauryan period and state the main

features of land grants?

OR

Explain the agricultural practices followed by cultivators to increase productivity from 600 BCE

to 600 CE?

SOURCE BASED QUESTIONS:-

1. Page -- 37

In praise of Samudragupta …………………………………………the god of death.

Q1. What is a Prashasti? Give its significance in History?

Q2. Who has written the above prashasti? And for whom?

Q3. Mention any four qualities of a king?

Q4. Name the gods with whom the king has been compare to?

2. Page -- 41

Prabhavati Gupta ……………………………………………………………by Chakradasa

Q1. Who was Prabhavati Gupta? To whom is she granting land?

Q2. What were the things produced in the village?

Q3. Give the significance of the above inscription? Give two reasons.

Q4. Why were land grants made by kings? Give two reasons.

SUBJECT – HISTORY PROJECT WORK

3-41k

FEW SUGGESTIVE TOPICS FOR PROJECTS

1. The mysteries behind the mound of dead –Mohenjo-Daro

2. An In-depth study to understand Spiritual Archaeology in the Sub-Continent

3. Buddha’s Path to Enlightenment

4. Insight and Reflection of Bernier’s notions of The Mughal Empire

5. An exploratory study to know the women who created history

6. “Mahatma Gandhi” – A legendary soul

7. To reconstruct the History of Vijayanagar through the Archaeology of Hampi

8. The emerald city of Colonial Era –BOMBAY

9. Vision of unity behind the first war of Independence

10. Divine Apostle of Guru Nanak Dev

11. Help, Humanity and Sacrifices during Partition

12. Glimpses inside Mughals Imperials Household

13. The process behind the framing of the Indian Constitution

14. The ‘Brahm Nirupam’ of Kabir – A journey to Ultimate Reality

Guidelines: - Students can use primary sources available in city archives, newspaper cuttings,

photographs, film footage and recorded written speeches. Secondary sources can also be used

after proper authentication.

Each Student has to make 1 project for art Integration from the above given topic by keeping in

mind that project and the art integration topic remains same .It can be in the form of PPT , chart

(A-3 sheet),wood cut blocks, use of various media, study of various materials such as clay,

plaster of paris and other throw-away materials.

Criteria for assessing the project-

• Punctuality

• Presentation

• Comprehension

• Research work

• Case study from India- Facts/figures

• Maps/Tables/ Newspaper cuttings/Articles

Project should have-

• Cover page

• Index

• Acknowledgement

• Introduction

• Project Work

• Conclusion

• Bibliography

• Project report should be hand written only.

SUBJECT: PHYSICAL EDUCATION

All students are required to prepare a Project/Record-practical file.

Practical-1: Modified AAHPER administration for six items. (Pull-ups, in case of girls the pull-

ups are to be started from a flexed arm hang, Flexed leg sit-ups, Shuttle run, Standing long/Broad

Jump, 50 yard dash/sprint, 600 yard run).

Practical-2: Write and explain, Barrow three-item Test on an individual. (zig zag run, standing

broad jump, medicine ball put).

Practical-3: Asanas as preventive measures- Write the procedure, benefits and contraindication

of five asanas for lifestyle diseases. (Obesity, Diabetes, Asthama, Back pain, Hypertension/Blood

pressure.)

Practical-4: Procedure for administering Senior Citizen Fitness Test on elderly family members.(

Chair stand test for lower body strength, Arm curl test for upper body strength, Chair sit-and- reach

test for lower body flexibility, Back scratch test for upper body flexibility, eight foot up and go

test for agility, Six minute walk test for aerobic endurance).

Practical-5: Any one game of your choice (Team game out of the following- Athletics, Basket

ball, Football, Handball, Hockey, Kho-kho and Volleyball))

A well Labeled diagram, computations and specifications of the field and equipment including the

rules, terminologies and fundamental skills of the game).

Practical-6 Draw a neatly labeled diagram of 400mts track with all the specifications and

computations of the track and field games.

Note:

In the practical 3, 5 and 6 mentioned above all poses for asana, court specifications and dimensions

and the 400 m track have to be specifically drawn using a pencil.

No work/files will be accepted with printed or pasted pictures as per CBSE.

Subject: COMPUTER SCIENCE

Note: Do all the questions in notebook.

Part A - Functions

1 Function name must be followed by

2 keyword is used to define a function

3 Function will perform its action only when it is

4 Write statement to call the function.

def Add(): X = 10 + 20

print(X)

#statement to call the above function


def Add(X,Y): Z = X+Y

print(Z) #statement to call the above function


def Add(X,Y): Z = X+Y

return Z #statement to call the above function print(“Total =”,C)

7 Which Line Number Code will never execute?

def Check(num): #Line 1 if num%2==0: #Line 2

print("Hello") #Line 3

return True #Line 4

print("Bye") #Line 5 else: #Line 6

return False #Line 7 C = Check(20) print(C)

8 What will be the output of following code?

def Cube(n):

print(n*n*n)

Cube(n) # n is 10 here print(Cube(n))

9 What are the different types of actual arguments in function? Give example of any one of them.

10 What will be the output of following code:

def Alter(x, y = 10, z=20):

sum=x+y+z print(sum)

Alter(10,20,30)

Alter(20,30)

Alter(100)

11 Call the given function using KEYWORD ARGUMENT with values 100 and 200

def Swap(num1,num2):

num1,num2=num2,num1 print(num1,num2)

Swap( , )

12 Which line number of code(s) will not work and why?

def Interest(P,R,T=7): I = (P*R*T)/100 print(I)

Interest(20000,.08,15) #Line 1 Interest(T=10,20000,.075) #Line 2

Interest(50000,.07) #Line 3 Interest(P=10000,R=.06,Time=8) #Line 4 Interest(80000,T=10) #Line 5


def Calculate(A,B,C):

return A*2, B*2, C*2

val = Calculate(10,12,14) print(type(val)) print(val)

14 What is Local Variable and Global Variables? Illustrate with example


def check():

num=50

print(num)

num=100

print(num)

check() print(num)


def check():

global num

num=1000 print(num)

num=100 print(num) check() print(num)


print(“Welcome!”)

print(“Iam “, name ) # is double underscore

18 Function can alter only Mutable data types? (True/False)

19 A Function can call another function or itself? (True/False)


def display(s): l = len(s)

m="" for i in range(0,l):

if s[i].isupper(): m=m+s[i].lower()

elif s[i].isalpha(): m=m+s[i].upper()

elif s[i].isdigit(): m=m+"$"

else: m=m+"*"

print(m) display("[email protected]")


def Alter(M,N=50):

M = M + N N = M - N

print(M,"@",N) return M

A=200 B=100

A = Alter(A,B) print(A,"#",B)

B = Alter(B) print(A,’@’,B)

mailto:[email protected]


def Total(Number=10):

Sum=0

for C in range(1,Number+1): if C%2==0:

continue

Sum+=C return Sum

print(Total(4))

print(Total(7)) print(Total())


X = 100 def Change(P=10, Q=25):

global X if P%6==0:

X+=100 else:

X+=50

Sum=P+Q+X print(P,'#',Q,'$',Sum)

Change() Change(18,50) Change(30,100)

24 What will be the output of following code? a=100

def show():

global a a=200

def invoke():

global a a=500

show() invoke() print(a)


def drawline(char='$',time=5):

print(char*time)

drawline() drawline('@',10) drawline(65) drawline(chr(65))


def Updater(A,B=5):

A = A // B

B = A % B print(A,'$',B) return A + B

A=100 B=30 A = Updater(A,B)

print(A,'#',B) B = Updater(B)

print(A,'#',B) A = Updater(A)

print(A,'$',B)


def Fun1(num1):

num1*=2 num1 = Fun2(num1)

return num1 def Fun2(num1):

num1 = num1 // 2 return num1

n = 120 n = Fun1(n) print(n)

28

What will be the output of following code?

X = 50

def Alpha(num1):

global X num1 += X X += 20

num1 = Beta(num1) return num1

def Beta(num1):

global X num1 += X X += 10

num1 = Gamma(num1) return num1

def Gamma(num1): X = 200 num1 += X

return num1

num = 100 num = Alpha(num)

29

print(num,X)

What will be the output of following code?

def Fun1(mylist):

for i in range(len(mylist)):

if mylist[i]%2==0: mylist[i]/=2

else: mylist[i]*=2

list1 =[21,20,6,7,9,18,100,50,13] Fun1(list1) print(list1)

Part B - PYTHON LIBRARIES & RECURSIONS

1. What is module?

2. What is the file extension of Python module file?

3. Name any 2 built-in modules and also 2 function belonging to each category.

4. List any two advantages of modules?

5. Raj is a Python programmer and creating a project on some statistical application. For some functionality he requires the module statistics. Help Raj to correctly import this module so that all the functionality of statistics will be available in the program.

6. As Raj started coding, he realized he is actually using only single function median() from the module statistics. Now he wants to reduce the load and import only single function from the module statistics. Help Raj to write the

correct way to import so that only single function will be imported from statistics.

7. Fill in the blanks to import all the name from given module:

from statistics import

8. Raj is a Python programmer and he has imported the module math, and from this math module he wants to use the function sqrt() to calculate square root of

n. But he forgot how to use function from imported module. Help Raj to use the function sqrt().

import math n = int(input("Enter number "))

num = # statement to call sqrt() function for value

n print(num)

9. Write the missing statements:

from math import sqrt,pow print( ) # To calculate square root of

144 print( ) # To calculate (3)7

print(math.sqrt(121)) # This statement will work or not? If not, give reason. 10. Give the name of the required module for the given functions?

(i) randrange() (ii) mean()

(iii) dump() (iv) sin()

11. function is used to get all information about module i.e. name of all

functions, variables, etc available in that module.

Part C - RECURSION

1. Which is the most appropriate definition for recursion?

a) A function that calls itself b) A function execution instance that calls another execution instance of the same function c) A class method that calls another class method d) An in-built method that is automatically called

2. To end the recursive function, it must include

3 What happens if the base condition isn’t defined in recursive programs?

a) Program gets into an infinite loop

b) Program runs once

c) Program runs n number of times where n is the argument given to the function d) An exception is thrown

4 Which of these is false about recursion?

a) Recursive function can be replaced by a non-recursive function

b) Recursive functions usually take more memory space than non-recursive function

c) Recursive functions run faster than non-recursive function d) Recursion makes programs easier to understand

5 Execution of recursive calls in recursion is in which order (Choose correct option)

1. Sequential 2. Reverse

6 Define a recursive SCREENSAVER() function which displays “Welcome to my PC” infinite

times.

7 Fill in the line of the following Python code for calculating the factorial of a number. def fact(n):

if n==1:

return 1

else:

return

a) n * fact(n-1)

b) (n-1) * (n-2)

c) n * (n-1) d) fact(n) * fact(n-1)

8 Define a recursive function FACT(n) to calculate and return the factorial of n

9 Define a recursive function SUM1TON(n) to calculate sum of all the number from 1 to n

10 Define a recursive function FIBO(n) to generate Fibonacci series for first n numbers For e.g. if n is 6, the numbers to generate are 0 1 1 2 3 5

11 Find the output of following Python code:

def Func1(A,B): if A % B == 0:

return 10 else:

return A +

Func1(A,B-1) val = Func1(20,15) print(val)

12 Find the output of following Python code:

def Alter(n):

if n<=2:

return 5

else:

return n + Alter(n-2)

sum =

Alter(20)

print(sum)

fo"k;&fgUnh

iz’u 1- ik¡p vifBr x|ka’k fy[kdj muls lacaf/kr nl cgqfodYih iz’uksa dslgh mÙkj Nk¡Vdj viuh mÙkjiqfLrdk esa fyf[k,A

iz’u 2- ik¡p vifBr i|ka’k fy[kdj muls lacaf/kr nl cgqfodYih iz’uksa dslgh mÙkj Nk¡Vdj viuh mÙkjiqfLrdk esa fyf[k,A

iz’u 3- fuEufyf[kr esa ls fdUgha ik¡p fo"k;ksa ij jpukRed ys[k fyf[k,Aeu ds gkjs gkj gS eu ds thrs thrHkkjrh; fdlku ds d"Vchrk gqvk le; fQj gkFk ugha vkrko`{kkjksi.k dk egRoizd`fr dh j{kk%ekuo dh lqj{kkfodjky :i /kjrh egkekjh dksjksukyM+fd;ksa dh f'k{kklQyrk ds lksiku p<+rh ;qok&ih<+h

iz’u 4- fgUnh Hkk"kk vkSj lkfgR; ls tqM+s fofo/k fo"k;ksa@ fo/kkvksa@lkfgR;dkjksa@ledkyhu ys[ku@lkfgfR;d oknksa@Hkk"kk ds rduhdhi{k@izHkko@lkfgR; ds lkekftd lanHkksZ ,oa thou ewY;ksa laca/kh izHkkoksavkfn ij ifj;kstuk dk;Z dhft,A

iz’u 5- HkfDru dh csVh ds ekeys esa ftl rjg dk QSlyk iapk;r us lquk;k]og vkt Hkh dksbZ gSjrvaxst+ ckr ugha gSA xzh"ekodk’k esa vkiv[kckjksa ;k Vh-oh- lekpkjksa esa vkus okyh fdlh ,slh ?kVuk dksHkfDru ds ml izlax ds lkFk j[kdj vius ifjokj ds lnL;ksa dslkFk ml ij ppkZ djsaA

iz’u 6- dksjksuk ok;jl egkekjh ds dkj.k gekjs ns’k ds MkWDVj o esfMdyLokLF;dehZ th tku ls ukxfjdksa ds LokLF; ds fy, esgur dj jgsgSaA MkWDVjksa o esfMdy LokLF;dfeZ;ksa dks muds ;ksxnku ds fy,viuk vkHkkj O;Dr djrs gq, fpfdRlk ea=h dks ,d i= fyf[k,A

iz’u 7- LoPNrk vkSj lko/kkuh cjrdj vki dkQh gn rd dksjksuk ok;jlls viuk cpko dj ldrs gSaA yksxksa ls lkekftd nwjh cuk, j[kusdk vuqjks/k djrs gq, ,d jpukRed iksLVj cuk,¡A

NEW ERA PUBLIC SCHOOL Assignments for Summer Vacation ...

Documents

Transcript of NEW ERA PUBLIC SCHOOL Assignments for Summer Vacation ...