hello aspirant,

First of all you must read the entire NCERT Textbook, all chapters, of Physics to score good and excellent marks in NEET UG Examination. Secondly, since you have asked some of the important chapters for Physics class 12th, here are some important chapters that you must read from NCERT Textbooks for NEET UG Exams ;

Modern Physics , from class 12th syllabus, is the most important topic for NEET. Current Electricity & Magnetism, Electrostatics and Optics are also very important chapters for NEET 2022 and you should thoroughly prepare and practice these topics.

Furthermore, to know the complete syllabus and important chapters for all subjects in NEET UG Examination - Physics, chemistry and biology, you can follow the below mentioned link to know more about it : https://medicine.careers360.com/articles/do-or-die-chapters-for-neet

i hope that this will help.