Dear Aspirant,

Here are some important topics which will help you in your examination

PHSYICS

Oscillation and waves

Rotational motion

Magnetic effect of current

Newton laws motion

Electrostatic

Current electricity

CHEMISTRY

Equilibrium

Chemical kinetics

Solid state

Chemical bonding

S block

Pbkock

Transition elements

Carbonyl compounds

MATHEMATICS

Integrals

Probably

Reasoning

Vector

Conic section

Straight lines

Sets

You can also visit the below link to check important dates, syllabuses and other important knowledge regarding Jee mains 2020

https://engineering.careers360.com/articles/jee-main-2020/amp

Thanks

All the very best