This book aims to provide a complete coverage of topics to meet the needs of first year undergraduate engineering students as per revised syllabus of Mumbai University. It enables students to develop an understanding of the basic concepts of the theory. All topics are written in easy language and are put point wise. For most of the students solving numerical is big problems, this difficulty is simplified by including several solved numerical in every chapter. Author's long experience in teaching the subject will ensure that the book will enthuse the students to assimilate the basic understanding of engineering physics and help them understand the concepts of various branches of engineering in the higher semesters.