Is NCERT books best for understanding concepts in physics and chemistry?
Undoubtedly, Yes … NCERT is best for Understanding concepts and for strong conceptual base, not only for Biology, but for Physics & Chemistry also. But, it’s only effective when you go through it multiple times.
No one can understand anything in just one reading, multiple reading is necessary with Notes preparation, because when your concepts are clear then only you can easily solve numerical based questions of Physics & MCQs.
I know sometimes, it will become difficult to understand the Physics NCERT textbook. But, Neglecting NCERT as a whole is not right.
Some tips to read Physics & Chemistry NCERT:-
Don’t try to read a chapter in one go. Must read each & every topic and prepare notes. Practice back questions given in NCERT, both Physics & Chemistry.
Highlight Important points & topics, write down in your notes, give a good revision.
Prepare a separate mini notebook for physics formulas & Chemistry reactions for practicing. Secondly, make sure all the formulas should be on your fingertips. After finishing the syllabus of the whole NCERT syllabus, start attempting tests, Mocks & PYQs.
Focus on Understanding the concepts, rather than Memorization. Physics & Chemistry are only understandable through practicing questions. Don’t get distracted.