I am reading this book from 2 years since class 11 .concept of physics by harish chandra verma is also known as the bibble of Physics for beginers . All the students who craks IIT can suggest this book . The concept of physics contains useful questions and it helps in comptetion. The questions are given with solutions where students can easily understand and solve the questions. The wordings of the concepts of physics is very easy to understand . There is no difficulty in understanding. So use this book for study