First you should visit the reduced syllabus once. Many topics have been deleted from the old syllabus. So you should never waste your time going through the deleted topics like Cyclotron, Brewster’s law etc.
You should focus more on the high weightage topics. I have discussed the topics according to their level of difficulty in this answer.
You can always prioritize the topics according to their weightage. The way you should cover is that you should cover the easy chapters first and then move to the difficult ones.
EASY TOPICS :
- Electronic Devices : Many of you would ignore this chapter since it carries just 7 Marks. This could be a big mistake since it is one of the easiest chapters of physics. Topics like Band diagram, P type, N type SC, PN junction, FB, RB, I-V Characteristics and Basics of LED, Photodiode, Solar cell should be covered well.
- Electromagnetic waves : Fully theory- based chapter and again easier than many chapters. It won’t take more than 2 hours to study. Note that displacement current has been deleted now.
- Atoms and Nuclei : Focus on Bohr model, energy levels, hydrogen spectrum, Nuclear fission, fusion etc.
- Dual Nature of Radiation : This is also easy. Photoelectric questions, de-Broglie relations etc. are important.
- Magnetism and Matter : Go through the topics like dipole moment , bar magnet etc.
MODERATE TOPICS :
- Wave Optics : This chapter carries good marks. You should give time to practice the derivations. Wave front, Huygen’s principle, Interference, diffraction should be covered well.
- Alternating Current : Good numerical questions are made from this chapter. LRC network, Resonance, Basics of AC current, AC transformer etc should be thorough.
- Electromagnetic Induction : This is a very conceptual chapter. Understand the concepts well otherwise you won’t be able to solve the numerical from this chapter. Refer sample papers to practice some good questions on this topic.
DIFFICULT TOPICS :
These topics are not so difficult if you give proper time to them. They require enough time for practice and cannot be covered in hurry.
- Electrostatics : Derivations should be practised well from this chapter. Coulomb’s Law, Electric field under various conditions, Gauss’s theorem and its application, Equipotential surface, Capacitor concepts should be practised thoroughly.
- Current Electricity : Practice numerical from this chapter very well. Topics like Kirchhoff’s law , Wheatstone bridge, Series/Parallel combination have a lot of numericals which you cannot ignore. Drift velocity, Mobility, Cell, Potentiometer are important.
- Moving Charges and Magnetism : Derivations and good numericals are made from this chapter. Biot-Savart law , Ampere’s law, Solenoids, Force on moving charges, current carry conductors etc. are very important and lots of derivations are there from these topics.
- Ray Optics and Optical Instruments : Good numerical question of 3M or 5 M can be there from this chapter. Very conceptual questions and derivation are asked from this chapter. Topics like Refraction, Total Internal reflection, Lenses, Prism etc are important. You can be asked to make a diagram of Microscopes or telescopes.