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How to Score 90+ in CBSE Class 12 Physics, a Board-Paper Strategy
How to score 90+ in CBSE Class 12 Physics with high-weightage chapters from real board papers, derivations, numericals and ray diagrams.
Class 12 Physics rewards a mix of understanding and presentation: derivations, numericals and diagrams.
Where the marks are
| Chapter | Avg marks per paper | Share |
|---|---|---|
| Moving Charges & Magnetism | 7.9 | 12% |
| Electric Charges & Fields | 7.5 | 12% |
| Semiconductor Electronics | 7.5 | 12% |
| Current Electricity | 6.8 | 10% |
| Wave Optics | 6.2 | 10% |
| Ray Optics | 6.1 | 9% |
| Electrostatic Potential & Capacitance | 4.2 | 7% |
| Dual Nature of Radiation & Matter | 3.9 | 6% |
Averaged across 8 CBSE Class 12 Physics board papers, 2023–2026. All chapters
Strategy
- Derivations: understand each step instead of memorising. Practise writing the key derivations in full. List of important derivations
- Numericals: formula, then substitution with units, then the answer with correct significant figures.
- Diagrams: ray diagrams in optics and circuit diagrams, drawn neatly with arrows and labels.
- Theory questions: definitions and SI units, stated precisely.
Case-based questions
These usually describe an experiment or real application. Read carefully and link it to the NCERT concept.
Final weeks
Two full papers a week, a daily derivation, and an error log of formula and sign mistakes.
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