How to Study Physics for Board Exam — Score 90+ Strategy
How to study Physics for CBSE & ICSE board exam — chapter-wise strategy, numerical solving tips, derivation guide, diagram techniques, and time management for.
Physics scoring in board exams comes down to three things: formula mastery, numerical practice, and neat diagrams. Most students fear Physics because they read it like a textbook instead of solving it like Maths. Physics is a doing subject — you learn by solving, not by reading.
The 3 Types of Physics Questions
| Type | Marks Share | Strategy |
|---|---|---|
| Numerical Problems | 35–40% | Formula + substitution + calculation. Show every step. Include units. |
| Theory / Derivations | 30–35% | NCERT language. Step-by-step. Include diagrams with derivations. |
| Diagrams + Short Answer | 25–30% | Neat labelled diagrams. Definitions in NCERT words. Differences in table format. |
Class 12 Physics — Chapter-Wise Strategy
| Chapter | Marks | Focus On |
|---|---|---|
| Electrostatics | 8 | Coulomb's law numericals, electric field lines diagram, capacitor combinations |
| Current Electricity | 8 | Ohm's law, Kirchhoff's rules, Wheatstone bridge, meter bridge numericals |
| Magnetic Effects | 6 | Biot-Savart law, Ampere's law, force on conductor, moving coil galvanometer |
| EMI & AC | 6 | Faraday's law, Lenz's law, AC generator, transformer |
| EM Waves | 4 | EM spectrum (memorise order, wavelength ranges, uses) |
| Ray Optics | 8 | Mirror/lens formula numericals, ray diagrams, total internal reflection, prism |
| Wave Optics | 6 | Young's double slit experiment, diffraction, Brewster's law |
| Dual Nature | 4 | Photoelectric effect, de Broglie wavelength, Einstein's equation |
| Atoms & Nuclei | 6 | Bohr model, hydrogen spectrum, nuclear reactions, binding energy |
| Semiconductor | 7 | p-n junction, diode characteristics, logic gates (truth tables) |
Class 10 Physics — Chapter-Wise Strategy
| Chapter | Approx Marks | Focus On |
|---|---|---|
| Electricity | 13–15 | V=IR, P=VI, series/parallel circuits, H=I²Rt, electricity bill calculations |
| Light | 10–12 | Mirror & lens formula, ray diagrams (6 cases each), power of lens, eye defects |
| Magnetic Effects | 5–6 | Fleming's rules, electric motor, generator, transformer ratio |
| Sources of Energy | 3–4 | Conventional vs non-conventional, nuclear fission/fusion |
Physics chapter-wise practice
Super Tutor has Physics numericals and theory questions for Class 10 & 12 — solve with step-by-step solutions.
Start Physics Practice — FreeHow to Solve Numericals — Step Method
| Step | What to Write | Marks Earned |
|---|---|---|
| 1. Given | List all values: V = 12 V, R₁ = 4 Ω, R₂ = 6 Ω | 0.5 mark |
| 2. To Find | Total current (I) = ? | — |
| 3. Formula | V = IR, R (series) = R₁ + R₂ | 0.5 mark |
| 4. Substitution | R = 4 + 6 = 10 Ω, I = 12/10 | 0.5 mark |
| 5. Answer with unit | I = 1.2 A | 0.5 mark |
Even if your final answer is wrong, steps 1–4 earn you 1.5 out of 2 marks. Always show your working.
Diagram Rules
- Use pencil for drawing, pen for labelling. Pencil lines are cleaner for diagrams.
- Use a ruler for straight lines in circuit diagrams and ray diagrams.
- Make diagrams large — at least quarter-page size. Small diagrams lose detail marks.
- Label everything: focal point (F), centre of curvature (C), principal axis, object (O), image (I).
- Draw arrows on ray diagrams to show direction of light.
- Standard circuit symbols — use correct symbols for battery, resistor, ammeter, voltmeter.
Must-Know Derivations (Class 12)
| Derivation | Chapter | Expected Marks |
|---|---|---|
| Electric field due to dipole (axial & equatorial) | Electrostatics | 3–5 |
| Capacitance of parallel plate capacitor | Electrostatics | 3 |
| Biot-Savart law — field due to circular loop | Magnetism | 3–5 |
| Lens maker's equation | Optics | 3–5 |
| Young's double slit — fringe width | Wave Optics | 3 |
| de Broglie wavelength | Dual Nature | 2–3 |
| Bohr's model — radius and energy | Atoms | 3–5 |
Study Schedule for Physics
| Phase | Duration | Activity |
|---|---|---|
| Concept Phase | 2–3 months | Read NCERT chapter → understand theory → solve NCERT examples and exercises |
| Practice Phase | 1–2 months | Solve 20 numericals per chapter from reference books. Practise all derivations. |
| Revision Phase | 1 month | Formula sheets daily. Previous year papers. Time yourself. |
| Exam Phase | Last 2 weeks | 1 paper every 2 days. Diagram practice. Derivation writing from memory. |
Common Mistakes That Cost Marks
| Mistake | Marks Lost | Fix |
|---|---|---|
| Missing units in answer | 0.5 per numerical | Always write units: A, V, Ω, m, N, J |
| No diagram with derivation | 1–2 marks | Every derivation needs an accompanying diagram |
| Wrong sign convention | Full marks of numerical | New Cartesian: u always negative, f of concave mirror negative |
| Skipping steps in numericals | 1–2 step marks | Write formula → substitute → calculate even if "obvious" |
| Untidy circuit/ray diagrams | 1 mark | Use ruler. Draw large. Label clearly. |
Strategy applicable to both CBSE and ICSE Physics board exams. Marks distribution based on CBSE 2025–2026 blueprint. For ICSE-specific pattern, refer to cisce.org specimen papers. Last updated: February 2026.
Turn this into board-exam marks
Super Tutor gives you chapter summaries, previous-year questions, and full mock exams matched to your board syllabus — so you revise smarter, not longer.
Start preparing — freeFrequently Asked Questions
How to score 90+ in Physics board exam?
Three pillars: (1) Master derivations — 10-15 marks come from derivations in Class 12. Write them step by step. (2) Practise numericals — 25-30 marks are numerical-based. Solve 50+ problems per chapter. (3) Draw diagrams — ray diagrams, circuit diagrams, and field diagrams carry 2-3 marks each. Always label clearly.
Which Physics chapters are most important for boards?
Class 12: Electrostatics + Current Electricity (16 marks), Optics (14 marks), Magnetism + EMI (12 marks) — these 3 units cover 60% of the paper. Class 10: Electricity (13-15 marks), Light (10-12 marks) — these 2 chapters cover 70%+ of Physics marks.
How to solve Physics numericals faster?
Step method: (1) Read the question, identify which formula applies. (2) Write 'Given' — list all values with units. (3) Write 'To Find'. (4) Write the formula. (5) Substitute values. (6) Calculate. (7) Write answer with correct units. This structured approach prevents silly mistakes and earns step marks even if the final answer is wrong.
Should I memorise Physics derivations?
Understand, then memorise. If you understand the logic, you can derive it even if you forget a step. Key derivations for Class 12: Coulomb's law applications, electric field due to dipole, Biot-Savart law, lens maker's equation, de Broglie wavelength. Write each derivation 3-5 times. Practice reproducing from memory.
How to study Physics if I am weak at Maths?
Physics numericals use basic algebra and trigonometry — not advanced Maths. Focus on: (1) Unit conversion (cm to m, mA to A). (2) Scientific notation (10⁻⁶, 10³). (3) Basic trigonometry (sin 30°, cos 60°). (4) Rearranging formulas (V=IR → I=V/R). Practice these 4 skills and Physics numericals become manageable.