Which chapter is important in physics chemistry or maths?
Here are the important topics you can prfer for JEE Main Entrance Exam:
The important topics to study:
Physics
Mechanics- 30%
Heat & Thermodynamics -7%
Electrostatics & Current Electricity- 17%
Magnetics & Electro Magnetic Induction- 13%
Optics & Waves- 3%
Modern Physics- 10%
Simple Harmonic Motion, Waves & Elasticity- 7%
Semi-Conductor Devices, Electromagnetic Waves and Principles of Communication- 13%
Chemistry
Organic Chemistry- 30%
Inorganic Chemistry- 30%
Physical Chemistry- 40%
Mathematics
Co-Ordinate Geometry- 17%
Calculus- 27%
Algebra- 27%
Vector/3-D Geometry- 10%
Trigonometry- 6%
Sets & Relations, Mathematical Reasoning, Statistics- 13%
You can also refer the below given article for the further information.
https://engineering.careers360.com/articles/jee-main-important-topics-books
Good Luck!