Hey,

To get a good score in JEE mains you have to start preparing from now onwards.

To prepare well you should first go for NCERT textbooks and then other books only when you are done with NCERT's.

And after completing NCERT's you should go for mock tests and analyze mocks on the same day. Check if there is a conceptual error. Clear that on the same day.

JEE Main Books for Physics are-

·         Problems in General Physics by I.E. Irodov

·         Concepts of Physics Vol I and II by H.C. Verma

·         Fundamentals of Physics by Halliday, Resnick & Walker