Which are the topics of JEE MAIN having low input and high output in Physics .please give me list of it.....

Hello dear

There is a list of topics included in the syllabus of physics for JEE Mains. All these topics have their own level of difficulty. Concerned to what your question is, I will tell you some of the topics which can be excelled with efforts less than the other topics.
One of the easiest topic is Error analysis and Units and Measurements. It takes very less time to grasp the concepts and this one will be helpful for your final practical exams as well.
Optics is another one-  both ray and wave optics. The basics should be clear.
Nuclear physics- this one is something that you have been learning since your class 9th(the fundamentals).
Thermodynamics- A really important topic. It is really easy to solve questions if you know the basics.
Other topics can be Semiconductors, Gravitation, simple harmonic motion, waves.

Thus, if you see, almost all the topics are included here, which means you should not leave any topic and also, you should not look for easier ways, rather work hard and excel as all these topics are equally important and if given sufficient time can be perfected.

I hope this helps. All the best!!

• Kinematics
• Law of motion
• Friction and rotation
• Electric current and electrostatic and dynamic
• Optics