hi yash,

I hope you are doing fine. JEE Mains is a national level exam for candidates who a want engineering college. It also served as a hurdle exam for candidates who wants to go for IITs through JEE advanced after giving JEE mains.

It is 3 hour online exam. It is 3 hours long and consist of 75 questions(25 phy +25 chem + 25 maths). Total marks of JEE Mains is 300. +4 for a correct answer and -1 for a negative answer. For a detailed syllabus analysis for Jee mains and its chapter wise distribution check the give link. We have provided a dedicated article regarding your query. You should check it :

Here it is.

I hope this answer will help.
All the best for the future!!

• Modern Physics:- 5 questions i.e 20 marks
• Heat and Thermodynamics:- 12 marks
• Current Electricity:- 12 marks
• Unit,Dimension and Vector:- 4 marks
• Electromagnetics Induction ; AC:- 4 marks
• Magnetics:- 8 marks