|Physics is considered as one one of the fascinating subjects in school of science. Physics today aims at understanding the concepts and principles of so as to put into pratice in various applications. This book provides a sound knowledge of Physics on the concepts and Principles. Every attempt has been made to presen the topic in a simple and lucid manner. this book inculcate self confidence and courage in students on learning physics under the present circumstances of increasing syllabi of every stage of education. The Contents in this book are self explanatory. all suggestions for improvement of this book will be greatly invited and rectified in the Editions to come.