Physics requires you to have a strong hold on concepts. Some chapters for JEE from physics have a heavy weightage given below.

Mechanics

Electricity and magnetism Thermal physics

Fluids and waves and sound

Potentiometer-related experiments

Optics

Modern physics- It is mostly theoretical in this, the focus should be on understanding the nuances of Bohr’s model. The common formulae should be memorized.

Good Luck!