Hello,Patil

If you have completed you HSC textbook completely,I think you should refer to some other books to either practice more or to make your concepts more clear.Usually Physics is the most toughest subject,So only reading textbook wont be enough. But by reading only textbook surely you can score more than 40 marks.If you have joined any coaching class you ca refer to their notes or practice book,Also if you are planning to appear for any entrance exa like jee after 12 you can start preparing for it so your HSC physica portion will also be get covered and you may score more marks.

Hope your query is answered.

Other books -Navneet,NCERT,