HI,

To score well in Physics you should focus more on the below mentioned topics which are important and easy and can help you score high marks easily.

1) Work, Energy and Power

2)Ray Optics

3) Wave Optics

4) Electrostatics

5) Current Electricity

6) Modern Physics.

Also, Work on your basics, you can take help of NCERT books to make your concepts strong, you should complete below topics which carry maximum weightage in the exam -

Capacitance- 6.67%
Current Electricity- 10.00%
Heat & Thermodynamics- 13.33%
Rigid Body Dynamics- 6.67%
Work, Power & Energy- 6.67%
Modern Physics- 10.00%

Hope this helps.

Good luck.