Hello guys! I am a student of IIT roorkee. At the time when I was preparing for my JEE Adv exam I always worried about my physics. But this book helped me through some tough time. The accuracy and diplomatic approach is absolutely incredible. If you wonder why this book is so special and popular among student who are preparing for engineering entrance exams is because the author of this book Dr HC verma is a retired proffesor of IIT Kanpur. If you honestly solve this book then this would be more than enough to score in any engineering entrance exam. Worth every penny of yours. Buy it no!