The study of physics calls for logical, critical and analytical thinking. Solving numerical problems develops the mental abilities required for such studies, and is also a satisfying experience. It is a common practice for students to read and memorize the solved numerical problems rather than attempting to solve them. I have come across many students who have never solved even a single numerical problem throughout their academic career. They were either scared of calculations, or desisted doing them. The situation can be rectified by giving the students adequate practice. Care should be taken not to force it on them; instead, they should be motivated. The paradigm shift from subjectivity to objectivity has been emphasised in the recent changes made by CBSE in its pattern of examination in physics in the board examination. Along with numerical problems, there are plenty of MCQs based on conceptual understanding of the subject.

The main purpose of this book is:

To give students an opportunity to gain a deeper understanding of the prescribed CBSE physics curriculum.

To give numerical problems to apply physics in a much broader context than it is discussed in the theoretical physics.

To provide a rich domain of problems so that students gain more experience by solving those problems thereby becoming more confident.

To facilitate the students by giving them a wide variety of objective questions in the subjects

Some of the key features of the book are as follows:

Based on the latest CBSE syllabus.

Brief overview of important concepts at the beginning of each chapter.

Solved numerical problems have been graded according to their degree of difficulty.

Plenty of different types of objective questions have been added.

Difficult problems based on Higher Order Thinking Skills (HOTS) have been included in each chapter for the star performers.

Important questions from previous year's Board Examinations have been included

Conceptual problems from NCERT textbook and NCERT Exemplar have been added in each chapter.

Plenty of questions based on applications have been added.

SI units have been emphasised wherever necessary.

Important objective questions, with hints, from various competitive examinations have been included in each chapter.

Objective questions based on reasoning and practical skills have been included as per the revised syllabus of CBSE.

Apart from the students of class XI, the book will also meet the needs of those appearing for competitive examinations such as KVPY, Physics Olympiads, NEET, IITJEE, NDA, etc.

All suggestions for further improvement of this book will be greatly appreciated.