Which physics book is best for the board exam and also for iit preparation.
If taken any coaching, read/SOLVE their books for problems...
dear student
Start your preparation with NCERT Physics for theory and conceptual clarity
For IIT physics, read HC Verma and solve its questions. it conatins objective type questions which are helpful for you to understand type of questions that could come in exam .
For problem practicing :
Fundamentals of Physics by Halliday, Resnick and Walker.
previous years IIT-JEE/Jee Advanced Papers.
Problems in General Physics by I. E. Irodov (optional).
hope this helps
All the best!!!