Pls say me the important topics in phy which is enough for securing a minimum of 50 in phy in jee mains..

Hello Dear

Inorder to secure the 50+ marks in the Physics domain regarding that below the link is given through which you can able to check all the important topics of JEE mains from where the questions are generally will ask.

https://engineering.careers360.com/articles/jee-main-important-topics-books

All the best

Hey
It is not easy even you completed your whole syllabus untill you do it with proper and untill you go through the concepts .
So I suggest how much syllabus you do do it with full dedication and preparation.
And you can not depend upon only some of the topics so better to prepare with best of you.
Btw some of main topics which can help you to score 50+ are
Optics
Electrostat
Current
Thermodynamics
Fluid
Waves
Kinematics
Laws of motion

So good luck.