About the BookA systematic study of Physics at 10+2 level, premedical test, IIT (JEE), first year B.E./B.Tech. course, National Eligibility Test (NET) and civil services involves solution of numerical problems of varying standards the understanding of which is important. An attempt has been made in clarifying the basic concepts for the benefit of students in making their bright career. This book, consisting of more than two thousand solved problems, has been designed to provide an approach for solving problems for those who are studying the subject and are appearing for the examinations mentioned above. In fact, the basic idea in bringing out this ideal book is to develop an insight in the candidates in solving numerical problems which in turn strengthen their grasp over the fundamental aspects of Physics.About the Author/sDr. S.L. Srivastava obtained his Master degree in Physics from the University of Gorakhpur in 1963. He was junior research fellow of Council of Scientific and Industrial Research from 1963 to 1966. He was appointed Lecturer in Physics at the University of Gorakhpur now known as DDU Gorakhpur University and in 1996 he became Professor of Physics. The major field of his research was experimental spectroscopy specially the spectroscopic studies of heterocyclic molecules of Biological interest. Five scholars have obtained Ph.D. degree under his supervision. His forty research papers have been published in reputed national and international journals. Besides, a large number of papers have been presented in scientific conferences and symposia.