Hello aspirant,

If you are looking to prepare for competitive exams such as JEE Mains or NEET then all chapters of class 12 in Physics are equally important. However, certain chapters have been removed from the Class 12 syllabus keeping in mind the present pandemic situation.

To know about the detailed syllabus visit the link below:
https://school.careers360.com/articles/up-board-12th-syllabus

Hope this helps you!