Hii!
Let me tell you that all the topics are important from exam point of view of you want to score well. This is because you never know what are the topics from which questions are going to appear in your exam. However, you will get the relative weightage of topics in each subject appearing in the exam in the link given below -

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-syllabus-weightage/amp

Hope this helps.
Good luck!

Hello there,
It is important to know the more weightage topics for your preparation. Some easy and more weightage topics in Physics are:
Optics
Current Electricity
Electrostatics
Heat and thermodynamics
Modern physics

You can check the weightage of each subject in the link given below:
https://engineering.careers360.com/articles/jee-main-syllabus-weightage

Hope this answer helps you.
Good luck!!

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