Hii aspirants

let me clear your doubt.

Here i am providing you details regarding how much question is asked from which subject through which you will let to know regarding the important topics to be read to gwt above 200 in jee main 2020.these are

Topics                % of questions asked

Gravitation             2

Work Energy and Power 3

Rotational Motion        3

Kinetic theory of Gases     3

Electromagnetic Induction and Alternating currents            3

Experimental skills       3

Kinematics       3

Laws of motion       3

Oscillations and Waves       3

Atoms And Nuclei      3

Physics and Measurement      4

Properties of Solids and Liquids     5

Magnetic Effects of Current and Magnetism 5

Electromagnetic Waves      5

Communication Systems      5

Dual Nature of Matter and Radiation 6

Current Electricity          8

Thermodynamics          9

Electrostatics                9

Optics                           10

Electronic devices       14

For math

Binomial theorem and its simple applications 2

Differential equations 3

Mathematical Induction 3

Mathematical reasoning 3

Permutations and combinations 4

Trigonometry 4

Sequence and series 5

Sets, Relations and Functions 5

Vector Algebra 5

Three Dimensional Geometry 6

Complex numbers and quadratic equations 7

Matrices and Determinants 7

Statistics and Probability 8

Integral Calculus 9

Limit , continuity and differentiability 10

Co-ordinate geometry15

For chemistry

Some basic concepts in chemistry 5

States of matter 3

Atomic Structure 3

Solutions 5

Chemical Thermodynamics 4

Equilibrium 6

Redox Reaction and Electrochemistry 4

Chemical kinetics 3

Surface Chemistry 1

General Principle and process of Isolation of metals 2

Classification of Elements and Periodic table 3

Hydrogen 3

p- Block Elements5

S - Block Elements (Alkali and Alkaline Earth Metals) 1

Chemical Bonding and Molecular Structure 5

d - and f - BLOCK ELEMENTS 4

Co-ordination Compounds 4

Environmental Chemistry 3

Purification and Characterisation of Organic Compounds 3

Some Basic Principles of Organic Chemistry 3

Hydrocarbons 3

Organic Compounds containing Halogens 2

Organic Compounds containing Oxygen 6

Organic Compounds Containing Nitrogen 1

Polymers 3

Biomolecules 3

Chemistry in Everyday Life 4

Principles Related to Practical Chemistry 3

For more detail you can visit the site

https://engineering.careers360.com/exams/jee-main

I hope my answet will be helpful for you Good luck