50 Most Expected Derivations & Topics for CBSE Class 12 Physics 2026 Exam
Master These High-Yield Concepts to Score 90+ in Physics!
Why This List Matters: Based on past trends, NCERT emphasis, and recent CBSE sample papers, these 50 topics are highly likely to appear in the 2026 Board Exam—either as derivations, numerical problems, or theory questions. Focus here to maximize your score efficiently.
Electrostatics (Chapters 1–2)
- 1. Electric Field on Axial Line of an Electric Dipole
- 2. Electric Field on Equatorial Line of Dipole
- 3. Electric Dipole in Uniform Electric Field
- 4. Electric Field Due to a Line Charge
- 5. Electric Field Due to Infinite Charged Plane Sheet
- 6. Electric Field Due to Charged Spherical Shell
- 7. Electric Potential at any point due to an Electric Dipole
- 8. Potential Energy of an Electric Dipole in Uniform Electric Field
- 9. Parallel Plate Capacitor
- 10. Capacitance with Dielectric Slab Filling the Space Between Plates
- 11. Energy Stored in a Charged Capacitor
Current Electricity (Chapter 3)
- 12. Drift Velocity
- 13. Relation between Drift Velocity and Electric Current
- 14. Electric Current and Current Density
- 15. Cells in Series
- 16. Cells in Parallel
- 17. Wheatstone Bridge
- 45. Kirchhoff’s Laws
Moving Charges & Magnetism (Chapter 4)
- 18. Motion of a Charged Particle in a Uniform Magnetic Field
- 19. Magnetic Field at a Point on the Axis of a Current Loop
- 20. Force Between Two Infinitely Long Parallel Current-Carrying Conductors
- 21. Torque on a Current Loop in a Magnetic Field
- 49. Force Acting on a Current-Carrying Conductor
Electromagnetic Induction & Alternating Currents (Chapters 6–7)
- 22. Self-Induction (of a Long Solenoid)
- 23. Mutual Induction (of Two Long Solenoids)
- 24. Mean or Average Value of A.C.
- 25. Root Mean Square (RMS) or Virtual Value of A.C.
- 26. A.C. Through LCR-Series Circuit
- 27. Power in an A.C. Circuit
- 41. Transformers
- 44. AC Generator
Ray & Wave Optics (Chapters 9–10)
- 28. Mirror Formula (for Concave Spherical Mirror)
- 29. Linear Magnification (for Concave Spherical Mirror)
- 30. Refraction at Convex Spherical Surface
- 31. Lens Maker’s Formula
- 32. Refraction through a Prism
- 33.a & 33.b. Simple Microscope – Magnifying Power (Image at D and Infinity)
- 34.a & 34.b. Compound Microscope – Magnifying Power (Image at D and Infinity)
- 35. Astronomical Telescope (Image at Infinity)
- 50. Reflecting Telescope
- 36. Laws of Reflection (Based on Wave Theory)
- 37. Laws of Refraction (Based on Wave Theory)
- 38. Conditions for Constructive and Destructive Interference
Modern Physics (Chapters 12–13, 14)
- 39. Distance of Closest Approach (in Rutherford Scattering)
- 40. Bohr’s Theory of Hydrogen Atom
- 42. Half-Wave Rectifier
- 43. Full-Wave Rectifier
- 46. I-V Characteristics of PN Junction Diode
- 47. Properties of Nuclear Forces
- 48. Binding Energy per Nucleon vs Mass Number Curve
Pro Tip: Practice each derivation step-by-step. CBSE often awards marks for correct methodology—even if the final answer is wrong. Pair these topics with NCERT back exercises and previous year papers for best results.
Final Words
The CBSE Class 12 Physics 2026 exam will test both conceptual clarity and application skills. This curated list of 50 topics covers nearly all high-weightage areas across the syllabus. Prioritize understanding over rote learning—especially in chapters like Electromagnetic Induction, Optics, and Semiconductors.
At Deus Learnings, we’re committed to helping you succeed with accurate, syllabus-aligned, and exam-focused resources. Bookmark this page, share it with classmates, and start your focused revision today!