Hello Aspirant,

Important chapters for Physics of JEE-Main 2020 are enlisted below :-

• Optics
• Thermodynamics
• Electrostatics
• Rotational mechanics
• Units and Measurements
• Kinetic theory of gases
• Waves and oscillation
• Modern Physics

For preparation tips by experts and chapter wise weightage you should read this article .

You can also attend our Mega Revision Marathon series for JEE-Main April 2020 free of cost .

I hope this answer helps you.

All The Best!!