A well-revised Physics textbook by Ashok Sharma and R C Lakhan Pal and published by Modern Publishers. For the Physics paper A BSc 3rd semester Panjab University,  Chandigarh.

• revised edition
• articles have been revised to make the subject matter easier
• university questions asked in the universities of the region have been added
• the presentation and organization of the subject matter of this book revolves around the concept of learning through self-study
• concept-oriented 
• a large number of objective questions, as well as hints for their answers, have been given at the end of each chapter 
• a large number of solved and unsolved problems have been included so as to enable the readers to comprehend and apply the knowledge acquired by them 

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• use of easy words which are easy to comprehend 
• various types of questions along with answers are provided: short answer type question, very short answer type question, multiple-choice questions, and long answer type question 
• latest previous year university question papers are attached 
• important definitions and theories are highlighted 
• exam pattern, mark pattern, and syllabus are exclusively explained 

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