CONTENT · 14 Definite Integration 06 15 Differential Equations 05 16 Probability Distribution 03...

SAMPLE C

ONTENT

SAMPLE C

ONTENTSTD. XII Sci.

With Solutions

Model

Printed at: Prabodhan Prakashan Pvt. Ltd., Navi Mumbai

TEID: 12830_JUP

P.O. No.131616

© Target Publications Pvt. Ltd. No part of this book may be reproduced or transmitted in any form or by any means, C.D. ROM/Audio Video Cassettes or electronic, mechanicalincluding photocopying; recording or by any information storage and retrieval system without permission in writing from the Publisher.

Salient Features • A set of 4 Model Question Papers with solutions each for Physics, Chemistry,

Maths & Biology (Total 16 Model Question Papers)

• Prepared as per the new board paper pattern.

• Includes Board Question Papers of 2017 and 2018.

• Complete answers to every question with relevant marks.

• Graphs and diagrams provided wherever necessary.

• Simple and lucid language.

• Self-evaluative in nature.

SAMPLE C

ONTENTPreface

HSC is the cornerstone of a students career as it opens up the doors to turn their dreams into reality.

It acts as a platform for students to specialise in a field that interests them the most. However, to achieve this

it becomes imperative to get into the details of each subject and to clarify its fundamentals. Adequate

knowledge base thus helps students to boost their self confidence and pave their way up in the final

examinations. It is rightly said, ‘Practice makes a man perfect’. Keeping this adage in mind, we are proud to

introduce “Std XII Sci. Model Question Papers With Solutions”. This set of question papers provides

students thorough practice for preparation of their final examinations. The book consists of 16 Model

Question Papers in all; based on Physics, Chemistry, Maths and Biology (a set of four model question papers

for each subject). Along with these question papers, we’ve provided model answers with relevant marks so as

to make sure that students understand the importance of each question. These question papers reflect the latest

changes in content and paper pattern as updated by the Board of Higher Secondary Education. Furthermore we have also included Board Question Papers of March, July 2017 and 2018

examinations. Board Question Papers of March, July 2016 and solutions to Board Question Papers of March,

July 2016, 2017 and 2018 can be accessed by scanning the given QR Code. Though these Board Question

Papers follow old paper pattern, the purpose behind adding these papers is to make students familiar with the

framework of board questions and their solutions. Also, these questions can be moulded as per new paper

pattern and thereby are potential questions. We are sure that, these question papers would provide ample practice to students in a systematic

manner and would boost their confidence to face the challenges posed in examinations. We welcome your valuable suggestions and feedback towards this book.

We wish the students all the best for their examinations! Yours faithfully

Publisher Edition: Second

Disclaimer This reference book is transformative work based on textual contents published by Bureau of Textbook. We the publishers are making this reference book which constitutes as fair use of textual contents which are transformed by adding and elaborating, with a view to simplify the same to enable the students to understand, memorize and reproduce the same in examinations. This work is purely inspired upon the course work as prescribed by the Maharashtra State Board of Secondary and Higher Secondary Education, Pune. Every care has been taken in the publication of this reference book by the Authors while creating the contents. The Authors and the Publishers shall not be responsible for any loss or damages caused to any person on account of errors or omissions which might have crept in or disagreement of any third party on the point of view expressed in the reference book. © reserved with the Publisher for all the contents created by our Authors. No copyright is claimed in the textual contents which are presented as part of fair dealing with a view to provide best supplementary study material for the benefit of students.

SAMPLE C

ONTENTIndex

Subject Page No.

Marking Scheme

Physics 1 Chemistry 2

Maths 3 Biology 4

No. Subject Test Page No.

Question Papers Model Answers

1. Physics

1 5 102 2 8 121 3 11 141 4 14 162

2. Chemistry

1 17 183 2 21 197 3 25 212 4 29 229

3. Maths

1 32 243 2 35 258 3 38 274 4 41 288

4. Biology

1 44 304 2 46 316 3 48 328 4 50 338

No. Board Question

Paper Subject

Page No.

Question Papers

1. March 2017

Physics 52

Board Question Papers of

March, July 2016 and

Solutions of March, July

2016, 2017, 2018 can be

accessed by scanning the

given QR Code

Chemistry 55 Maths 58

Biology 61

2. July 2017


Maths 70 Biology 74

3. March 2018


Maths 83 Biology 86

4. July 2018


Maths 95 Biology 98

SAMPLE C

ONTENT

1

Physics

PHYSICS : PAPER PATTERN There will be one single paper of 70 Marks in Physics. Duration of the paper will be 3 hours. Section A: (8 Marks)

This section will contain Multiple Choice Questions and Very Short Answer(VSA) type of questions. There will be 4 MCQs and 4 VSA type of questions, each carrying one mark. Students will have to attempt all these questions. Section B: (14 Marks) This section will contain 7 Short Answer (SA-I) type of questions, each carrying 2 marks. Internal choice is provided for only one question. Section C: (33 Marks) This section will contain 11 Short Answer (SA-II) type of questions, each carrying 3 marks. Internal choice is provided for only one question. Section D: (15 Marks) This section will contain 3 Long Answer (LA) type of questions, each carrying 5 marks. Internal choice is provided for each question.

Distribution of Marks According to the Type of Questions Type of Questions

MCQ 1 Mark each 4 Marks VSA 1 Mark each 4 Marks SA - I 2 Marks each 14 Marks SA - II 3 Marks each 33 Marks LA 5 Marks each 15 Marks

No. Topic Name Marks 1 Circular Motion 04 2 Gravitation 03 3 Rotational Motion 04 4 Oscillations 05 5 Elasticity 03 6 Surface Tension 04 7 Wave Motion 03 8 Stationary Waves 05 9 Kinetic Theory of Gases and Radiation 04

10 Wave Theory of light 03 11 Interference and Diffraction 04 12 Electrostatics 03 13 Current Electricity 03 14 Magnetic Effects of Electric Current 03 15 Magnetism 03 16 Electromagnetic Induction 04 17 Electrons and Photons 03 18 Atoms, Molecules and Nuclei 04 19 Semiconductors 03 20 Communication Systems 02

SAMPLE C

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2

Chemistry

2

CHEMISTRY : PAPER PATTERN There will be one single paper of 70 Marks in Chemistry. Duration of the paper will be 3 hours. Section A: (8 Marks)




No. Topic Name Marks 1 Solid State 04 2 Solutions and Colligative Properties 05 3 Chemical Thermodynamics and Energetics 06 4 Electrochemistry 05 5 Chemical Kinetics 04

6 General Principles and Processes of Isolation of Elements

03

7 pBlock Elements 08 8 d and fBlock Elements 05 9 Coordination Compounds 03

10 Halogen Derivatives of Alkanes and Arenes 04 11 Alcohols, Phenols and Ethers 04 12 Aldehydes, Ketones and Carboxylic Acids 05 13 Compounds Containing Nitrogen 04 14 Biomolecules 04 15 Polymers 03 16 Chemistry in Everyday Life 03

SAMPLE C

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3

Mathematics and Statistics

MATHEMATICS AND STATISTICS : PAPER PATTERN There will be a single paper of 80 Marks in Mathematics and Statistics. Duration of the paper will be 3 hours. All questions will be compulsory. The question paper will consist of 30 questions divided into four sections A, B, C, D. The paper pattern will be as follows: Section A: (6 Marks) This section will be based on Multiple Choice Questions. There will be 6 MCQs, each carrying 1 mark. Section B: (16 Marks) This section will contain 8 questions, each carrying 2 marks. One of them will have internal option. Section C: (18 Marks) This section will contain 6 questions, each carrying 3 marks. Two of them will have internal options. Section D: (40 Marks) This section will contain 10 questions, each carrying 4 marks. Three of them will have internal options.


MCQ 1 Mark each 6 Marks VSA 2 Marks each 16 Marks SA 3 Marks each 18 Marks LA 4 Marks each 40 Marks

No. Topic Name Marks

1 Mathematical Logic 06 2 Matrices 04 3 Trigonometric Functions 08 4 Pair of Straight Lines 04 5 Vectors 05 6 Three Dimensional Geometry 03 7 Line 03 8 Plane 03 9 Linear Programming 04

10 Continuity 04 11 Differentiation 06 12 Applications of Derivatives 06 13 Integration 07 14 Definite Integration 06 15 Differential Equations 05 16 Probability Distribution 03 17 Binomial Distribution 03

SAMPLE C

ONTENT

4

Biology

4

BIOLOGY : PAPER PATTERN There will be one single paper of 70 Marks in Biology. Duration of the paper will be 3 hours. Section A: (8 Marks)




No. Topic Name Marks 1 Genetic Basis of Inheritance 05 2 Gene : It’s Nature, Expression and Regulation 04 3 Biotechnology: Process and Application 03 4 Enhancement in Food Production 03 5 Microbes in Human Welfare 03 6 Photosynthesis 05 7 Respiration 05 8 Reproduction in Plants 04 9 Organisms and Environment I 03

10 Origin and Evolution of Life 03 11 Chromosomal Basis of Inheritance 03 12 Genetic Engineering and Genomics 02 13 Human Health and Diseases 02 14 Animal Husbandry 02 15 Circulation 06 16 Excretion and Osmoregulation 04 17 Control and Co-ordination 05 18 Human Reproduction 05 19 Organisms and Environment – II 03

SAMPLE C

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5

Physics

MODEL QUESTION PAPER – I PHYSICS

Time: 3 Hours Total Marks: 70 General instructions: 1. All questions are compulsory. 2. Section A contains Q.no. 1 to 4 of multiple choice type of questions carrying one mark each.

Q.no. 5 to 8 are very short answer type of questions carrying one mark each. 3. Section B contains Q.no. 9 to 15 of short answer type of questions carrying two marks each.

Internal choice is provided to only one question. 4. Section C contains Q.no. 16 to 26 of short answer type of questions carrying three marks each.

Internal choice is provided to only one question. 5. Section D contains Q.no. 27 to 29 of long answer type of questions carrying five marks each.

Internal choice is provided to each question. 6. Use log-table if necessary. Use of calculator is not allowed. 7. Neat diagrams must be drawn wherever necessary. 8. All symbols have their usual meaning unless otherwise stated. 9. Answers to all sections must be written in the same answerbook.

1. In a conical pendulum, the centripetal force 2mv

r

acting on the bob is given by

(A) 2 2

mgrL r

(B) 2 2

mgrL r

(C) 2 2L rmgL

(D) 1/ 22 2

mgLL r

2. The wavefront obtained from a source of light is cylindrical at time t, the source of light is (A) a point source at finite distance. (B) a point source at infinite distance. (C) a thin linear source. (D) a large size source of any shape. 3. When a positively charged conductor is earthed, (A) electrons flow from the conductor to the earth. (B) no charge flow occurs. (C) protons flow from the conductor to the earth. (D) electrons flow from the earth to the conductor. 4. Radius of gyration of a disc rotating about an axis perpendicular to its plane and passing through its

centre is

(A) R2

(B) R3

(C) R3

(D) R2

5. Define the term magnetic flux. 6. How is the direction of angular displacement given by right hand thumb rule? 7. Define moment of inertia. 8. What is half life period?

SECTION A

Write the most appropriate answer from the given alternatives: [4]

Answer the following questions in one sentence each: [4]

SAMPLE C

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6

H.S.C. Model Question Paper

6

9. State the law of conservation of angular momentum and explain with a suitable example.

OR

9. Assuming M.I. of solid sphere about its diameter to be 22 MR5

, show that M.I. of solid sphere about

its tangent is 27 MR5

. 10. A soap bubble has radius 4 cm. What is the amount of additional work done in increasing its radius

further by 2 cm? (Surface tension of soap = 0.03 N/m.) 11. Explain the need for modulation related to the size of antenna (aerial). 12. Draw a neat labelled diagram of Van de Graaff generator. 13. Explain the rise of liquid in capillary tube on the basis of pressure difference.

14. Find the polarising angle of light, if critical angle of medium is sin1 34

.

15. The distance between two rails of rail track is 1.6 m along a curve of radius 800 m. The outer rail is

raised about the inner rail by 10 cm. With what maximum speed can a train be safely driven along the curve?

16. State and explain principle of potentiometer with proper diagram. 17. State and explain three postulates of Bohr’s theory of hydrogen atom. 18. Describe how an artificial satellite using two stage rocket is launched in an orbit around the earth.

Explain the nature of all the possible orbits of a satellite with the help of suitable diagram. OR

18. State and explain Kepler’s laws of planetary motion. 19. Explain the working of transistor as a switch. 20. State Kirchhoff’s law of radiation and give its theoretical proof. 21. Obtain an expression for magnetic induction along the axis of toroid. 22. The area of the upper face of a rectangular block is 0.5 m 0.5 m and the lower face is fixed. The

height of the block is 1 cm. A shearing force applied at the top face produces a displacement of 0.015 mm. Find the strain and shearing force. (Modulus of rigidity : = 4.5 1010 N/m2)

23. In accordance with the principle of conservation of energy, state and explain Lenz’s law of

electromagnetic induction. 24. Explain Doppler effect in sound and state its any ‘four’ applications. 25. What are photons? State characteristics of photon. 26. On the basis of circulating charges explain the origin of magnetism.

SECTION B

SECTION C

Answer the following questions in short: [14]

Answer the following questions: [33]

SAMPLE C

ONTENT

7

Physics 27. A. Define end correction.

Show that for pipe open at both ends, the end correction is e = 1 1 2 2

2 1

n n2(n n )

l l , where the symbols

have their usual meanings. B. The fundamental frequency of an air column in a pipe closed at one end is in unison with the

third overtone of an open pipe. Calculate the ratio of lengths of their air columns. OR

A. Show that even as well as odd (all) harmonics are present as overtones in the case of an air column vibrating in a pipe open at both ends.

B. Two wires of the same material and having the same radius have their fundamental frequencies in the ratio 1 : 2, and tensions in the ratio 1 : 8. Compare ratio of their lengths.

28. A. 16 g of oxygen occupy 0.025 m3 at 27 C. If the universal gas constant is 8.4 J/mol K. Find

the pressure exerted by it. (Molecular weight of oxygen = 32) B. Describe biprism experiment to find the wavelength of monochromatic source of light. Draw

the necessary ray diagrams. OR

A. At what temperature will average kinetic energy of gas be double of its value at N.T.P.? B. Describe with neat diagram, the Fraunhofer diffraction pattern due to single slit. 29. A. Show that motion of bob of pendulum with small amplitude is linear S.H.M. Hence obtain an

expression for its period. B. A particle executes S.H.M. with amplitude of 10 cm and period of 10 s. Find the i. velocity ii. acceleration of the particle at a distance 5 cm from the equilibrium position.

OR A. A particle performs linear S.H.M. What fraction of its total energy is kinetic when the

displacement is half the amplitude? B. Velocity of particle performing S.H.M. is 5 cm/s when its displacement is 12 cm and velocity

is 12 cm/s when its displacement is 5 cm. What will be its frequency and amplitude?

SECTION D

Answer the following questions: [15]

SAMPLE C

ONTENT

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CONTENT · 14 Definite Integration 06 15 Differential Equations 05 16 Probability Distribution 03...

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