Hello hello ,

As per your mentioned query , yes ncert of physics for jee mains is important. As , ncert is the base for all the concepts. You first have to understand the base of every concept then you can go in depth for further studies.

Ncert tells you the base of each concept. So , it is very important for you to read ncert. You can also solve the questions that are in ncert books as they are conceptual based questions.

I hope this solution helps you.

Good luck !!