Hello Anamika ,

You haven't clearly mentioned which exam you're preparing for and asking for in your question. Coming to the next part of your question , B.Sc Physics ( Hons) is an undergraduate programme you can take up in various universities and colleges. It depends purely on where you're applying to as there is no nation wide exam. For getting into DU and other top colleges , they look at the board scores attained. Some have an entrance examination and it's not purely Physics they ask in the exam. They do have questions based on PCM and in a few exams they might be having greater weightage in Physics.

Hope this helps!