Waves and Oscillations

394 Pages·2009·2.41 MB·English

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Copyright © 2010, 2001, New Age International (P) Ltd., Publishers
Published by New Age International (P) Ltd., Publishers
All rights reserved.
No part of this ebook may be reproduced in any form, by photostat, microfilm, xerography,
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mechanical, without the written permission of the publisher. All inquiries should be
emailed to [email protected]
ISBN (13) : 978-81-224-2842-1
PUBLISHING FOR ONE WORLD
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4835/24, Ansari Road, Daryaganj, New Delhi - 110002
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Foreword
In order to understand the physical world around us, it is absolutely necessary to know the
basic features of Physics. One or the other principle of Physics is at work in objects of daily
use, e.g., a ceiling fan, a television set, a bicycle, a computer, and so on. In order to understand
Physics, it is necessary to solve problems. The exercise of solving problems is of immense
help in mastering the fundamentals of the subject. Keeping this in mind, we have undertaken
a project to publish a series of books under the broad title Basic Physics Through Problems.
The series is designed to meet the requirements of the undergraduate students of colleges
and universities, not only in India but also in the rest of the third world countries.
Each volume in the series deals with a particular branch of Physics, and contains about
300 problems with step-by-step solutions. In each book, a chapter begins, with basic definitions,
principles, theorems and results. It is hoped that the books in this series will serve two main
purposes: (i) to explain and derive in a precise and concise manner the basic laws and
formulae, and (ii) to stimulate the reader in solving both analytical and numerical problems.
Further, each volume in the series is so designed that it can be used either as a supplement
to the current standard textbooks or as a complete text for examination purposes.
Professor R. N. Chaudhuri, the author of the present volume in the series, is a teacher
of long standing. He has done an excellent job in his selection of the problems and in deriving
the solutions to these problems.
Kiran C. Gupta
Professor of Physics
Visva-Bharati
Santiniketan
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Preface to the Second Edition
It is a great pleasure for me to present the second edition of the book after the warm
response of the first edition. There are always important new applications and examples on
Waves and Oscillations. I have included many new problems and topics in the present
edition. It is hoped that the present edition will be more useful and enjoyable to the students.
I am very thankful to New Age International (P) Ltd., Publishers for their untiring
effort to bringing out the book within a short period with a nice get up.
R.N. Chaudhuri
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Preface to the First Edition
The purpose of this book is to present a comprehensive study of waves and oscillations in
different fields of Physics. The book explains the basic concepts of waves and oscillations
through the method of solving problems and it is designed to be used as a textbook for a
formal course on the subject. Each chapter begins with the short but clear description of the
basic concepts and principles. This is followed by a large number of solved problems of
different types. The proofs of relevant theorems and derivations of basic equations are included
among the solved problems. A large number of supplementary problems at the end of each
chapter serves as a complete review of the theory. Hints are also provided in the case of
relatively complex problems.
The topics discussed include simple harmonic motion, superposition principle and coupled
oscillations, damped harmonic oscillations, forced vibrations and resonance, waves,
superposition of waves, Fourier analysis, vibrations of strings and membranes, Doppler
effect, acoustics of buildings, electromagnetic waves, interference and diffraction. In all, 323
solved and 350 supplementary problems with answers are given in the book.
This book will be of great help not only to B.Sc. (Honours and Pass) students of Physics,
but also to those preparing for various competitive examinations.
I thank Professor K.C. Gupta for going through the manuscripts carefully and for
suggesting some new problems for making the book more interesting and stimulating.
R.N. Chaudhuri