This book is aimed specifically at aspirants appearing for the JEE exams. This first edition comes with comprehensive theory, problems, illustrations and graphs to strengthen reader's concepts while having enough problems for practice. With a judicious mix of conceptual, analytical and graphical methods, The aim is to cover all possible aspects of the topic in an easily understandable format for aspirants of both JEE Main & Advanced entrance Examination. The book contains comprehensive discussion on relevant principles of Physics and has derivations of all-important mathematical expressions. It even gives brief historical backgrounds at relevant places. ✔Book has been divided into multiple small chapters with focus on learning one thing at a time. ✔Principles have been illustrated with solved examples. ✔Every example starts with a heading named “concepts”. This contains explanation of physical situation and gives the important physical principle involved. ✔There are in - Chapter exercises “your turn“. ✔Difficult and tricky problems involving multiple principles and mathematical rigor have been given at the end of each Chapter under the name “Miscellaneous examples”. ✔Important points have been highlighted under the name “in short”. ✔There are 3 exercises at the end of each Chapter giving MCQs with one correct answer and subjective problems. ✔After every few chapters there is a separate Chapter on - Miscellaneous problems. This has matrix match type and passage based problems. ✔Questions asked in JEE – main and Advanced (erstwhile AIEEE and IIT JEE) from 2005 to 2017 (for chapters covered in the book) has been given at the end of the book.