SUMMER HOLIDAY HOMEWORK 2021 - 22

CLASS –XII

Dear Students,

“The anxious and unusual times bring unforeseen difficulties but the best of human nature can rise to the challenge.” We all have within us the strength, the patience and the passion to reach the stars to change the world. Let’s not fear change; embrace it. Life is all about moving on, accepting changes and looking forward to what makes us more adaptable and stronger. The Summer Break is scheduled from 14th May to 31st May 2021. Let’s not forget that this year vacations are not meant to explore the world outside but present an opportunity to rediscover ourselves while staying home and being safe. Summer Vacation has always been considered to be the most desirable period looked forward by children when they can go beyond academics but let’s not make it a challenging situation clouded with the gloominess of Corona Pandemic. So, embark on a journey of fun and adventure by reading books, exercising, meditating, dancing and channelizing your energy in a positive manner. In addition, maintain the momentum and rigour that has been built in the learning through the last year. Plan out and complete the holiday homework. In addition, revise the syllabus already completed and check the dates for Periodic Test – 1and make earnest and sincere preparation for the same. So during this unique break when you are homebound, be a source of support and help to your parents, be positive, focused, self disciplined and do live life with enthusiasm and zeal.

HAPPY HOLIDAYS!

ENGLISH CORE

Collect information about the Nobel Laureate Kailash Satyarthi.

Title your work as “Project on Nobel Laureate Kailash Satyarthi and his contribution towards

the eradication of Child Labour and Child Abuse”

1.Write a paragraph on Child labour highlighting in which industries and cities/towns it is

practiced most.

2.Give a brief Bio-Sketch of Kailash Satyarthi.

3. Enumerate details of one of his projects

Note: All work to be done on A4 Size sheets, labelled, stapled and kept in a folder

Suggested Reading List Fahrenheit 451 by Ray Bradbury

The Great Gatsby by F. Scott Fitzgerald

Death Of a Salesman by Arthur Miller

ENGLISH ELECTIVE

Seminar :

· Presentation - book review /a play /a short story/a novel/novella (tale, table, parable) to be followed by a question-answer session.

· Poetry reading to be followed by interpretative tasks based on close reading and literary analysis of the text.

Critical review of a film or a play

· Conducting a theatre workshop to be followed by a discussion.

You are to read novels ( literary work) from which you are to select one to work with for book review. Write a synopsis of the story. You are to read Poems from which you are to choose one to work with for interpretative presentation. Write the theme of the poem. You are to see films or plays and select one you will work with. Write the plot of the film or the story

Note: All work to be done on A4 Size sheets, labelled, stapled and kept in a folder

Suggested Reading List

Lord of the Flies by William Golding

The Great Gatsby by F. Scott Fitzgerald

Death Of a Salesman by Arthur Miller

MATHEMATICS

4. f(x)=

PHYSICS (Homework for students of park street school)

Mental preparation for upcoming session

• Go through Gauss’s theorem and its application.

• Know about capacitance and parallel plate capacitor

• Know about the current electricity:

a) Concept of emf and potential difference

b) Drift velocity

c) Ohm’s law, resistance and resistivity

d) Combination of resistors

e) Combination of cells

• Know about the refraction through curved surface

• Definition of wave front and shape of the wave front from different sources

(mirror, lens, and prism)

• Go through Young Double Slit Experiment in details (go through it, if you

understand it or not) Revision work (Park Street ) :

• Know the definition of electric field intensity and potential with their units and

dimensions.

• Do the derivation for electric potential due to the charge q at a distance r

• Know the definition of electric lines of force and its properties

• Know about the electric dipole, dipole moment, torque on electric dipole in a

uniform electric field

(One interactive class will be taken on revision work)

Answer the following questions(Understanding and application based)(Park Street):

1. Derive the relation between critical angle and refractive index.

2. Four point charges qA = 2µC , qB= -5 µC, qC= 2 µC and qD = -5 µCare located at the

corners of a square ABCD of side 10 cm. What is the force on charge of 1 µC placed

at the centre of the square ?

3. The electric potential as a function of distance x is shown in fig. Construct a graph of

the electric field strength E.

4. In a region, the potential is represented by V(x,y,z) = 6x – 8xy -8y +6yz, where V is in

volts and x, y, z are in meters. Find the electric force experienced by a charge of 2 C

situated at point (1,1,1)

5. Three immiscible liquids of densities d1> d2> d3 and refractive indices 𝜇1>𝜇2 >𝜇3 are

put in a beaker. The height of each liquid column is h/3. A dot is made at the bottom

of the beaker. For near normal vision find the apparent depth of the dot.

PHYSICS (Homework for students of park street school)

Mental preparation required for upcoming session (Salt Lake):

• Know about the current electricity:

f) Concept of emf and potential difference

g) Drift velocity

h) Ohm’s law, resistance and resistivity

i) Combination of resistors

j) Combination of cells

• Know about the reflection through curved surface

• Know about the refraction through curved surface

• Definition of wave front and shape of the wave front from different sources

(mirror, lens, and prism)

• Draw the diagram of optical instruments( Compound microscope and telescope)

• Go through Young Double Slit Experiment in details (go through it, if you

understand it or not )

Revision work (Salt Lake ) :

• Know the definition of electric field intensity and potential with their units and

dimensions.

• Do the derivation for electric potential due to the charge q at a distance r

• Know the definition of electric lines of force and its properties

• Know about the electric dipole, dipole moment, torque on electric dipole in a

uniform electric field

• Do the derivation for capacitance of parallel plate capacitor

(One interactive class will be taken on revision work)

Answer the following questions ( Understanding and application based)(Salt Lake ):

1. Four point charges qA = 2µC , qB= -5 µC, qC= 2 µC and qD = -5 µC are located at the

corners of a square ABCD of side 10 cm. What is the force on charge of 1 µC

placed at the centre of the square ?

2. The electric potential as a function of distance x is shown in fig. Construct a graph

of the electric field strength E.

3. In a region, the potential is represented by V(x,y,z) = 6x – 8xy -8y +6yz, where V is

in volts and x, y, z are in meters. Find the electric force experienced by a charge

of 2 C situated at point (1,1,1).

4. Derive the capacitance of a parallel plate capacitor with a dielectric slab of

thickness t inserted between the plates.

5. Find the potential difference between the points A and B of the arrangement

shown in figure.

**( Understanding and Application based questions

to be solved by the students at home in class work

copy and the pictures of the work to be submitted

through Google class room.)

Chemistry

1.Revise the chapters: 1. Solutions 2. Chemical kinetics 3. Haloalkane and haloarenes

2. Practice the numericals and problems done in the class from the chapters: 1. Solutions 2. Chemical kinetics 3. Haloalkane and haloarenes

3. Solve the following questions: Calculate the osmotic pressure of a solution by mixing 100 cc of 1.5% (m/v) aqueous solution of Urea (NH2CONH2) and 100 cc of 3.42% (m/v) aqueous solution of sugar (C12H22O11) at 293 K.

a. 30 ml of CH3OH (d= 0.798 gm/cc) and 70 ml of H2O (d= 1gm/cc) are mixed at 25°C to

form a solution of density 0.9575 gm/cc. Calculate the freezing point of the solution. [Kf

(H2O)=1.86 K kg mol-1 ].

b. An organic compound undergoes first order decomposition. The time taken for its

decomposition to 1/8 and 1/10 of its initial concentration are t1/8 and t1/10 respectively.

What is the value of t1/8/t1/10?

c. The rate of certain reactions depends on concentration(c) according to the equation :

-dc/dt = K1C/(1+K2C)

What will be the order of reaction, when concentration(c) is (i)very very high. (ii) very

very low.

d. 1.22 g of benzoic acid is dissolved in (i)100 g of acetone (Kb for acetone = 1.7 K kg mol-1

) and (ii)100 g of benzene (Kb for benzene=2.6 K kg mol-1).Elevation in boiling point are

0.17°C and 0.13°C respectively.

(i)What are the molecular weights of benzoic acid in both the solutions?

(ii)What do you deduce out of it in terms of structure of benzoic acid?

e. SN1 reaction of an optically active halide is accompanied by racemization. - Illustrate.

f. Among all the isomers of molecular formula C4H9Br, identify

(i) the one isomer which is optically active. (ii) the one isomer which is highly reactive towards SN2.

(iii) the two isomers which give the same product on dehydrohalogenation with alcoholic KOH.

g. A hydrocarbon of molecular mass 72 g mol-1 gives a single monochloro derivative on

photo chlorination. Give the structure of the hydrocarbon.

h. Benzyl chloride is highly reactive towards SN1 reaction. -Explain.

i. N-butyl bromide has higher boiling point than t-butyl bromide. Give reason.

k. Convert the following: (i) Benzene → Biphenyl (ii) Prop-1-ene → 1-Fluoropropane (iii) Ethanol → Propane nitrile

4.Study the group 15 elements, properties of group 15 elements and compounds of group 15

elements.

5. Study the group 16 elements, properties of group 16 elements and compounds of group 16

elements.

Biology

1. Making PPT for 22nd May Biodiversity programme 2. Investigatory projects according to board syllabus

ACCOUNTANCY

PROJECT WORK :- Topic- Specific project. Sub Topic- Segment Analysis of a Company.

You are required to upload the hand written draft of the project work in PDF format only. As

discussed earlier in the class all the aspect of the project must be duly covered. Keeping in the

mind the current scenario you don’t have to move out to get the printouts needed for the

project from outside except if u have the printer at home. Source documents and relevant

pictures can be added later on. It’s a board assigned project work and will be marked for

Board Practical Examination i.e. AISSCE-2022, so due interest and care must be taken for

completing it.

All the best…!!

ENTREPRENEURSHIP

Conduct a simple market research with the objective of estimating demand for an existing product in the market. Students will have to give an innovative suggestion to the product. Suppose if you choose shampoo and your preferred brand is Loreal then you need to compare it between 4 brands of shampoo like Sunsilk,Dove,Head and Shoulders and Loreal. Note :

Avoid products whose use is discouraged/banned by the society and government like alcohol/pan masala , tobacco products, etc.

Survey to be conducted from home . Format for Presentation of Market Survey Report :

It should be done individually.

The work should be hand written in loose sheets.

The survey report should be original and proper analysis for all questions in the questionnaire should be done.

The format for presentation of report which should be arranged in the following sequence: a) Executive summary b) Index c) Introduction to the topic (Introduction , objectives , steps , tools , advantages and disadvantages ) d) Profile of the organizations(concern of your choice and the competitor concerns) e) Questionnaires (the students will be preparing questionnaires based on their product which they will mail to individuals for collecting the feedback and communicate via telephone or some online mode. There is no need to collect data by moving out of their homes as the current circumstances are not favourable.) f) Data analysis and interpretation g) Conclusion and recommendation h) Bibliography i) Signature of teacher

Kindly also refer to the instructions given in the classroom .

Sample Questionnaire on Market Survey Product: Washing Detergent Purpose of the survey: To collect primary data for preparation of Class-XII

Entrepreneurship Market Survey Report. Feasibility of a newly innovated stain removing detergent patch is also being studied. General instructions: 1. Filling personal details is optional. 2. All questions are mandatory. 3. Choose only one response. 4. Respond by ticking () the most appropriate option. Disclaimer: All responses will be treated as confidential and used for academic purpose only. Personal Details : Name:___________________________ Age: ______________________ Gender: Male Female Occupation________________ Email:________________________________ Questionnaire : 1. How do you wash your clothes?

°Hand ° Wash ° Washing Machine °Laundry °Both hand wash and washing machine 2. Which washing machine detergent are you using now?

°Ariel. ° Surf Excel °Tide. ° Rin °Others_________________

3. Which hand wash detergent powder are you using now?

°Ariel. ° Surf Excel °Tide. °Rin °°Others________________

4. What motivated you to buy this washing detergent?

°Price °Quality °Brand Image °Any Others_________________ 5. From where did you come to know about your detergent?

°Friends °Family °Retailers °Advertisements

6. Do promotional schemes (For example, Buy 1 get 1 free) influence you in buying the product? °Yes °No 7. Does your washing machine detergent remove stains from your clothes the very first time itself? °Yes °No 8. Have you faced difficulty in removing stains from clothes during the wash?

°Yes °No 9. Do you think that stain can be removed only washing by hand?

°Yes °No 10. Will you buy a new detergent patch (like band aid), which when put on stains on the clothes, will remove them immediately?

°Yes °No

FINANCIAL MARKET MANAGEMENT

Project: Stock market response during the pandemic in india Shoe lace file Follow instructions given in the class.

Business Studies

Answer the following competency based questions:-

1.Raman is working as 'Plant Superintendent' with Tifco Ltd. Name the managerial level at

which he is working. State any four functions he will perform as 'Plant Superintendent' in this

company.

2.Chill-Out Private Limited is a company engaged in the business of manufacturing beverages.

In the month of March, Shyam, the manager of Chill-Out Private Limited, plans to bring out a

new drink for the summer season. He distributed free samples of the new launch and got the

feedback from the customers. The feedback report clearly indicated that customers have

preference for mango flavour over strawberry flavour and jamun flavour over imli.

Accordingly, the production was adjusted and the marketing department prepared their

promotional and advertising campaigns. As per the sales performance report, Shyam further

modified his production plans.(a) Identify and explain the concept of management highlighted

in the present case.(b) State the characteristics of the concept identified in the above para.

3.Sidhivinayak Private Limited is a well-recognised restaurant in the heart of Delhi. The

restaurant has created its niche in the gourmet circle. Nakul is responsible for setting up new

restaurants for the organisation. He identifies prime locations and arranges for funds. Chirag

looks after the overall functioning of one the restaurants. He ensures that the food quality is

maintained and resources are used optimally. For home delivery orders, Karan assigns areas

to the delivery boys and set the delivery time limits for them. At

what levels of management are Nakul, Chirag and Karan working in Sidhivinayak Private

Limited. Support your answer with two reasons for each level-one by quoting from above

para and one other.

4.Pure Living Private Limited is a company engaged in the business of manufacturing water

and air purifiers. The profits earned by the company are adequate for its existence and

progress. One of the beliefs of the company is that a satisfied employee creates a satisfied

customer, which leads to creation of profits ultimately resulting in satisfied shareholders. The

company pays competitive salaries and incentives to all its employees. The employees are

pleased working with the company because of personal growth and development. The

company has set up various training institutes in India. At these institutes, free of cost training

to repair air and water purifiers is imparted to people living in rural sector.Is the management

of Pure Living Private Limited fulfilling its objectives? Identify and state by quoting from the

above para.

5.Wardrobe India Limited is a chain of ladies garments boutiques where most of the work is

done manually. Due to coming of international brands in India, the company is finding it

difficult to compete on two fronts-finishing and embroidery work. The production manager

realized that without modern machines it will not be possible for them to survive for long.

The company purchased new hi-tech modern machines from Germany. During the production

process, the manager observed that the quality of production is not as per standard and very

often production is disrupted due to break-down of machineries. The workers get frustrated

by continuous rejection of output and started showing resistance towards new technology. To

increase the efficiency of the workers, the company decided to train their workers on-the-job

under the able guidance of specialists. The workers who are able to pick the skills are

promoted and made in-charge of the not so trained groups. This created positive impact and

everybody became keen to learn. Suggestions from the workers are valued and workers are

encouraged to communicate freely. Identify and explain the importance of management

highlighted above by quoting the lines.

6.Social-connect Private Limited is a mobile manufacturing company. The manager of the

company observed that the market is dynamic and a lot of changes were taking place in the

mobile market and hence, the risk of the product becoming obsolete is high .The designs of

the phones are governed by requirements and preferences of the customers. He started

incorporating new and advanced features taking cue from the consumers and with the help of

his workers.(a) ldentify the characteristic of management highlighted in this case.(b) Give any

two benefits of making these changes in the business.

7.If an organisation does not provide the right place for physical and human resources in the

organisation, which principle is violated? What are the consequences of it?

8.Mohan, a manager, does not distribute the work among his subordinates, either according

to capability proportionately.(a) Identify and explain which principle of management is being

overlooked. (b) Identify one benefit

of applying this principle.

9.In your school, you observe that books are kept in office, chalks in the library and office

records in the staffroom.(a) Identify and explain the principle of management which is being

overlooked.(b) Give one advantage of applying this principle.

10.Hina and Harish are typists in a company having same educational qualifications. Hina is

getting 3,000 per month and Harish 4,000 per month as salary for the same working

hours.Which principle of management is violated in this case? Name and explain the

principle.

11.Mohan, a manager, expects his subordinates to adapt to the new environment and

working conditions without giving them time to settle down.Identify and explain the principle

of management being overlooked.

12.Mudit, a new entrant in the industry with engineering degree, joined an organisation. The

top-level management offered him a very low pay.Which principle of management is

overlooked and why? How will it affect Mudit?

13.Principles of Taylor and Fayol are mutually complementary. One believed that

management should not close its ears to constructive suggestions made by the employees,

while the other suggested that a good company should have an employee’s suggestion

system, whereby suggestions which result in substantial time or cost reduction should be

rewarded.Identify and explain the principles of Taylor and Fayol referred to in the above para

14.Principles of Taylor and Fayol are mutually complementary. One believed that the

management should share the gains with the workers, while the other suggested that

employee’s compensation should depend on the earning capacity of the company and should

give them a reasonable standard of living.Identify and explain the principles of Fayol and

Taylor referred to in the above para.

15.ABC Ltd. Is engaged in producing electricity from domestic garbage. There is almost equal

division of work and responsibility between workers and management. The management

even takes workers into confidence before taking important decisions. All the workers are

satisfied as the behaviour of the management is very good. State the principle of

management described in the above para.

16.Voltech India Ltd. is manufacturing LED bulbs to save electricity. It is currently running

under heavy losses.To revive from the losses, the management thought of shifting the unit to

a backward area where labour is available at a low cost. The management also asked the

workers to work overtime without any additional payment and promised to increase the

wages of the workers after achieving its mission. Within a short period the company started

earning profits because both the management and the workers honoured their

commitments.State the principle of management described in the above para.

17.Pawan is working as a 'Production Manager' in CFL Ltd. engaged in the manufacture of CFL

bulbs. There is no class-conflict between the management and workers. The working

conditions are very good. The company is earning huge profits. As a policy matter,

management is sharing the gains with the workers because they believe that prosperity of the

company cannot exist for a long time without the prosperity of the employees.State the

principle of management described in the above para.

18.With change in the consumption habits of people, Neelesh, who was running a sweets

shop shifted to chocolate business. On the eve of Diwali he offered chocolates in attractive

packages at reasonable prices. He anticipated huge demand and created a website

chocolove.com for taking orders online. He got a lot of orders online and earned huge profit

by selling chocolates.Identify and explain the dimensions of business environment discussed

in the above case with quoting the lines.

19.Identify the type or dimension of environment to which the following are related: a. Banks

reducing interest rates on housing loans.b. An increasing number of working women. c.

Booking of air tickets through internet.d. Alcohol beverages are prohibited to be advertised

on 'Doordarshan'.

20.It is heartening that the implementation of compliance requirements of the Companies

Act, 2013 has progressed substantially with NIFTY 500 companies. Data shows a significant

increase in women's participation in the top management of Indian companies, from 5% a

few years ago to 13% now. Even companies, which are not in NIFTY 500, have undertaken

drives to increase women's participation across different areas of work. The government has

also announced that it would support such companies. Identify and explain the dimensions of

business environment discussed above which brought about the change.

Geography

1. Chapter 1 : Data Collection and Chapter 2: Data Processing have been completed.

You are to prepare the Practical file (Landscape) with the information and data

provided.

( Frequency distribution, Frequency bar, Frequency Polygon, Ogives. )

2. Chapter 4: Computers: Marked out portion to be written in the Practical File.

History

Topics have been discussed with the students about the AISSCE Practicals.

Economics

Project on the following topics according to the roll numbers allotted by the teacher: Topic 1 : Evolution of Money and Banking in India. Topic 2 : Agriculture and rural development. Topic 3 : Indian Government Budget. Topic 4 : Comparative development experiences of India and its neighbours. Topic 5 : Unemployment in India.

Political science

Project work: PPT presentation on the topic “ A comparative study of leaderships during

cold war”

SOCIOLOGY

Project work: PPT presentation on the topic “Tribal culture in West Bengal”

LEGAL STUDIES

Make a comparative Report under the following heads:

You can choose to write a Report on any one of the following topics.

1. The benefits and demerits of having regional benches for Supreme Courts in India.

2. The main differences in the legal systems between India and a civil law country in the world that follows an inquisitorial model of legal system. Choose a country of your choice.

3. Draft a school policy containing rules and regulations regarding cyber safety and security within the guidelines of Indian cyber laws.

PSYCHOLOGY

Determine intelligence level of your subject using any standardized test of intelligence. (Practical - Psychological Testing)

FASHION STUDIES

To use visual references to analyze ancient draped garments from Assyrian, Babylonian,

Sumerian, Egyptian, Greek and Roman Civilization.

MASS MEDIA STUDIES

Topic : FILMS

1. Prepare the script of your CBSE Board Practical movie and finish the shoot during the

holidays

2. The film has to be according to the synopsis approved by the teacher in class.

3. Save your rushes safe in multiple locations for edits .

COMPUTER SCIENCE

1) Hindustan Chemicals Ltd. is a company that deals in manufacturing and exporting of chemicals across the world and has hundreds of employees on its roll. It wishes to computerize the process of salary generation. Write a python program to enter the names of employees and their salaries as input and store them in a dictionary and also represent the data as a Salary Generation Report. Output eg: Name Salary Rinku 30000 Anu 40000

2) Write definition of a method COUNTNOW(Places) to find and display those place names in which there are more than 5 characters after storing the names in a dictionary. Places={‘1’:’DELHI’,’2’:’LONDON’,’3’:’PARIS’,’4’:’NEW YORK’} OUTPUT: LONDON NEW YORK

3)Traffic accidents occur due to various reasons. While problems in roads or inadequate

safety facilities lead to some accidents, majority of accidents are caused by drivers’

carelessness and their failure to abide by traffic rules.

ITS Roadwork is a company that deals with manufacturing and installing of traffic lights so as

to minimize the risk of accidents. Keeping in view the requirements, traffic simulation is to be

done. Write a program in python that simulates a traffic light. The program should perform

the following:

a) A user defined function traffic light() that accepts input from the user, displays an error

message if the user enters anything other than RED,YELLOW and GREEN. Function light() is

called and the following is displayed depending upon return value from light():

i)”STOP, Life is more important than speed” if the value returned by light() is 0 ii)”PLEASE GO SLOW” if the value returned by light() is 1 iii)”You may go now” if the value returned by light() is 2

b)A user-defined function light() that accepts a string as input and return 0 when the input is

RED, 1 when the input is YELLOW and 2 when the input is GREEN. The input should be passed

as an argument.

c) Display “Better late than never” after the function trafficlight() is executed.

WEB APPLICATION

Create a website that should have minimum of five pages :

a)Home Page b) Link Page 1 c) Link Page 2 d) Form page with Javascript

validations e) Acknowledgement Page.

1) Each website should be framed one. The layout of the same is given below

Top Frame

Website topic/heading

Left Frame Right Frame

Login Form

User

Name

Password

Confirm

Password

Home

About Us - Link page 1

Link Page 2

Form Page

Logo

Submit Reset