Hello!!

Hope you are doing great!!

If you are asking about the JEE Mains weightage chapters in physics, here it is:

• Modern Physics-20 marks
• Heat and Thermodynamics-12 marks
• Optics-12 marks
• Current Electricity-12 marks
• Electrostatics-12 marks
• Magnetics-8 marks
• Unit,Dimension and vector-4 marks

For more information,kindly refer the following link:

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

You can also go through the mock tests and NCERT books for better practice

Hope it helps!!

All the best!