NCERT is the most valuable book to prepare for physics for your board exam. It will help you to clear your concepts and you can build strong base.

It is recommended that you should solve exercises which is given at the end of the chapter.

You should also solve past year questions to get the idea about the level of the questions.

Focus on the topics which carries more weightage in the exam and you can solve as many as MCQs for your practice.

All the Best!!