practical physics class xi

According to the revised syllabus of the Board of Secondary Education, Madhya Pradesh, Bhopal

PRACTICAL PHYSICS CLASS XI

Writer

Modarator & Editer

Dr. Sardar Singh

R.S. Poddar

(M.Sc., Ph.D.) Reader Department of Physics Kirorimal College, Delhi University DELHI - 110007

M.Sc. Physics & Mathematics, M.Ed.

Translated by

R.P. Tripathi (M.Sc., B.Ed, M.A. (Education) & PGDCA) &

Dr. S. Saxena (M.Sc., M.Ed. & Ph.D.)

MADHYA PRADESH TEXTBOOK CORPORATION ‘‘iqLrd Ø; djrs le; i` "Bksa ij ik-iq-fu dk okVj ekdZ vo’; ns[ksaA’’

2013

Rs. (i)

Revised New edition 2007 Reprint 2008 Reprint 2013

© Madhya Pradesh Textbook corporation

All rights concerned with printing and publishing of this book are reserved with M.P. Textbook Corporation

Composing : Media Graphics & Computer, Bhopal

Printed at: (ii)

Madhya Pradesh Government Bhopal-462004

Narottam Mishra Minister of School Education

FOREWORD The Madhya Pradesh Textbook Corporation is publishing textbooks in Maths, Physics, Biology and Chemistry according to the revised syllabus of the Madhya Pradesh Board of Secondary Education, Bhopal. Keepting in Mind the English medium students and taking their requirement into consideration, English version of these books has also been prepared by the corporation. These books have been written by authors of very high calibre, selected at a state and National level. The needs and requirements of the students have been kept in mind at the time of writing of these books. Through these books the corporation has made a sincere effort to provide very good quality textbooks to students at very reasonable prices. I hope these books will not only help the students to widen the horizon of their knowledge but also to secure excellent result in the Board Examination. With Best wishes.

(Dr. Narottam Mishra) Minister for School Edn. Deptt. M.P. Government Bhopal

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Satish Mishra,

Madhya Pradesh Textbook Corporation Bhopal

I.A.S.

Managing Director

INTRODUCTION M.P. Textbook Corporation is publishing textbooks in Mathematics & Science for Class XI in the session 2007-08 according to the revised syllabus of the Board of Secondary Education, Bhopal. Keeping in mind the requirements of English medium students, the Corporation decided to bring out the English version of these books. 2. These books have been written by eminent and competent writers. It has been our endeavour to publish textbooks that could take care of the actual needs of a student. Keeping that objective in view, the manuscripts were checked by a group of subject experts as well as teachers actually teaching Higher Secondary classes. Special attention has been paid to the quality of paper. 3. It is our sincere hope that these textbooks will fulfil a long felt need of providing good quality textbooks of mathematics & Science subjects at low price to students. 4. It is possible that despite our best efforts to avoid any errors in these textbooks, some errors may have crept in. We expect the students & teachers to feel free to give us feedback, if any, in this regard. We would welcome suggestions by any to our readers to help us improve these textbook in the coming years. 5. I take this opportunity to convey our good wishes to all the students and teachers and wish them success in life.

(Satish Mishra) Managing Director M.P. Textbook Corporation Bhopal

(iv)

Approved by

Academic Council of M.P. Text Book Corporation S.No.

Name And Address

Designation

1.

Managing Director, M.P. Text Book Corporation Bhopal

Chairman

2.

Nominee of Commissioner, Public Instructions, Bhopal

Member

3.

Director, State Institute of Education, Bhopal

Member

4.

Nominee of Chairman, Board of Secondary Education, Bhopal

Member

5.

Director, State Institute of Science Education, Jabalpur

Member

6.

Dr. Krishan Kant Sharma, Educationist Gwalior

Member

7.

Shri Vivek Sharma, Educationist Shivpuri

Member

8.

Dr. (SMT.) Suman Mishra, Educationist Gorkhi, Gwalior

Member

9.

Shri Bharat Singh Chauhan, Educationist Chhichhawali, Morena

Member

10.

Shri Dayaram Vishwakarma, Educationist Shivpuri

Member

11.

Shri Gopal Singh Rathod, Educationist

Member

Shivpuri

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PHYSICS PRACTICAL Class – XI Time : 3 Hours

Max. Marks – 25

List of practical – Any ten (10) experiments from the following list must be performed. (1)

(2)

(3)

Uses of vernier callipers :(i)

To measure diameter of spherical/cylindrical bodies.

(ii)

To determine the volume and density of regular bodies.

(iii)

To determine the internal diameter and depth of hollow cylinder.

Uses of Screw Gauge :(i)

To measure the diameter of a given wire.

(ii)

To measure the thickness of a given sheet.

(iii)

To measure the volume of an Irregular Lamina.

Uses of spherometer :(i)

To determine the radius of curvature of a given spherical surface.

(ii)

To measure the thickness of a given sheet.

(4)

To study the relationship between the force of limiting friction & the normal reaction & to find the coefficient of friction between a block & a Horizental surface.

(5)

To find the downward force along an inclined plane acting on a roller due to gravitational pull of the earth & study its relationship with the angle of inclination by plotting Graph between force & sinθ.

(6)

To determine acceleration due to gravity using simple pendulum.

(7)

To find out young’s modulus of the material using Searle’s Apparatus.

(8)

To find out velocity of sound at room temperature using Resonance tube.

(9)

To finad out the frequency of given tunning fork using sonometer.

(10)

To determine the specific heat of a given solid using calorimeter.

(11)

To find out coefficient of thermal conductivity using Searle’s Apparatus.

(12)

To verify the Newton’s Law of cooling. ACTIVITIES

1.

To make a paper secale of given least count, e.g. 0.2 cm, 0.5 cm.

2.

To determine a mass of a given body using a metre scale by principle of moments.

3.

To study the variation in the range of a jet of water with the angle of projection.

4.

To study the conservation of energy of a ball rolling down on an inclined plane (using a double inclined plane).

5.

To study dissipation of energy of a simple pendulum by plotting a graph between (vi)

square of amplitude and time. 6.

To observe change of state and plot a cooling curve for molten wax.

7.

To observe and explain the effect of heating on a by-metallic strip.

8.

To note the change in the level of liquid in a container on heating and interpret the observations.

9.

To study the effect of detergent on surface tension by observing capillary rise.

10.

To study the factors affecting the rate of loss of heat of a liquid.

PROPOSED PROJECT WORKS (1)

To determine the difference of frequencies of two tuning forks with the help of Beats and to recognize the tunning fork of higher frequency.

(2)

To find out spring constant of a given spring.

(3)

Comperative study of inertial and gravitational mass.

(4)

Different uses of ticker timer.

(5)

Project releted to merits and demerits of friction in day today life.

Note :-

Project can be prepared on any of the above listed proposal or on any model based on any topic of the syllabus.

Proposed distribution of marks :(i)

Experiments :

15 Marks

(ii)

Viva voce :

03 Marks

(iii)

Record :

03 Marks

(iv)

Project work :

04 Marks

Total :

25 Marks

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CONTENTS S.No.

Name of Topic

Page No.

1.

Introduction

1-7

2.

Experiments

8-63

3.

Activities

64-84

4.

Projects

85-104

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