Jee main syllabus weightage percent wise

See depending on the weightage only is a smart choice. But don't get obsessed with the pattern as every year the question patter changes. I am providing here the most probable weightage as per the previous year trend analysis for Physics only and for the other subject you have to visit the link I would provide below:

3

12

Optics

3

12

Current Electricity

3

12

Electrostatics

3

12

Magnetics

2

8

Unit, Dimension and Vector

1

4

Kinematics

1

4

Laws of motion

1

4

Work, Power and Energy

1

4

Centre Of Mass, Impulse and Momentum

1

4

Rotation

1

4

Gravitation

1

4

Simple Harmonic Motion

1

4

Solids and Fluids

1

4

Waves

1

4

Electromagnetics Induction ; AC

1

4

For the chapterwise weightage of the JEE MAINS Chemistry and Mathematics, visit the link below:

https://engineering.careers360.com/articles/jee-main-syllabus-weightage

I hope this answer helps. All the very best for your future endeavors!