NEET - UG / JEE (Main) Challenger Physics Vol. - 1 book is an extensively compiled reference book by Target Publications for Engineering and Medical Entrance Exams. Questions from various Competitive Examinations like NEET- UG, JEE (Main), CPMT, TS EAMCET, BCECE, Assam CEE , MHT CET, K CET, GUJ CET, WB JEEM etc. are included to help students understand the variations in questions. These Notes have been put together for students to enable them to understand the application of various concepts in Physics and to ace the Examinations.