Physics problem-solving requires a large screen to see diagrams and equations. Using a phone for long hours strains your eyes and slows your speed. If you use a PDF, do it on a tablet (10+ inches) or a laptop .
Possibly, but risky. DC Pandey covers 80% of Advanced. For the remaining 20% (very tricky, multi-concept problems), you need to solve past JEE Advanced papers directly and refer to coaching modules. pdf of dc pandey physics
You do not need to solve all 200 problems in a chapter. Focus on: Physics problem-solving requires a large screen to see
Stop hunting for the perfect PDF. Start solving problems. Your JEE rank will thank you. Possibly, but risky
To get the most out of your study sessions, follow this workflow: Read the theory thoroughly before jumping to the math.