Hi Nikhil,

The important topics of Class 11th for JEE are as follows:-

@Physics

• Work energy theorem
• Rigid body Dynamics & Rotational Motion
• Gravitation
• Thermodynamics & Thermal Properties of Matter
• Simple harmonic motion

@Chemistry

• Mole concept
• Periodic Properties and Chemical Bonding
• Thermodynamics and Equilibrium
• General organic chemistry
• Element detection
• Inorganic salt analysis

@Mathematics

• Quadratic equation & Complex Numbers
• Series & Sequences (A.P., G.P., H.P.)
• Conic sections
• Probability

NOTE : These are the topics have the highest weightage in JEE and other topics are also important but as you have to go through Class 12 also, reading these topics will give you a good feel of Class 11th and will give you good marks in JEE also.

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!