ISC (ICSE) Class 12 Physics Formulas: Chapter-Wise
ISC Class 12 Physics formulas chapter by chapter: links to each chapter's formula sheet and a simple plan to learn them before the board exam.
Every Physics formula for ISC (ICSE) Class 12 is on our chapter formula sheets, linked below. Use this page to plan how you learn them before the 2027 board exams.
Chapter-Wise Formula Sheets
Each link opens that chapter's formula sheet on Super Tutor.
- Electric Charges and Fields
- Reflection of Light: Spherical Mirrors
- Gauss' theorem
- Refraction of light at a Plane Interface: Total Internal Reflection: Optical Fibre
- Electric Potential
- Refraction of Light at spherical surfaces: Lenses
- Capacitors and Dielectrics
- Refraction and Dispersion of Light through a Prism
- Electric Resistance and OHM's Law
- Optical Instruments
- DC Circuits and Measurements
- Wave Nature of Light: Hygens' Principle
- Moving Charges and Magnetic Field
- Interference of Light
- Torque on a Current-loop: Moving-Coil Galvanometer
- Diffraction of Light
- Magnetic Field and Earth's Magnetism
- Polarisation of Light
- Magnetic Classification of Substances
- Photoelectric Effect
- Electromagnetic Induction
- Matter Waves
- Alternating Current
- Atom, Origin of Spectra: Bohr's Theory of Hydrogen Atom
- Electromagnetic Waves
- Nuclear Structure
- Mass- Energy Equivalence: Nuclear Binding Energy
- Nuclear Fission and Nuclear Fusion: Source of Energy
- Semiconductor Electronics
- Junction Diodes
- Junction Transistors
- Logic Gates
Our Class 12 Physics formula sheet covers the NCERT syllabus. Many formulas are the same, but your board's syllabus is different, so check each one against your textbook.
Put your formula time where the marks are: in the ISC Physics theory paper, Optics carries 18 of the 70 marks. See the full split on our ISC Physics weightage page.
How to Use a Formula Sheet
- Keep it where you study — a printed or handwritten copy on your desk gets looked at every day.
- Test yourself — cover the formulas and write them from memory, then check.
- Group related formulas — formulas that build on each other are easier to remember together.
- Use each formula in problems — solve at least 2–3 questions with it so you know when to apply it.
Quick Revision Tips
- Short daily reviews — 15 minutes a day beats one long session before the exam.
- Formula cards — write one formula per card, shuffle and test yourself.
- Teach someone — explaining a formula out loud shows you whether you really know it.
- Night before the exam — go through your formula sheet once; don't start new problems.
Check the current syllabus on cisce.org before you rely on any formula list: CISCE can add or drop topics from year to year.
Turn this into exam marks
Super Tutor gives you chapter summaries, revision notes, practice quizzes and an AI doubt solver matched to your board syllabus — so you revise smarter, not longer.
Start freeFrequently Asked Questions
Are formulas given in the ISC Class 12 Physics exam?
Don't count on it. Board papers generally don't come with a formula sheet, so learn the formulas and practise using them.
How do I memorise formulas quickly?
Three methods work well: (1) write each formula from memory and check it, (2) group related formulas together, such as all identities of one chapter, and (3) use each formula in problems every day. Using a formula beats rereading it.
Which Physics formulas matter most for ISC Class 12?
In the ISC Physics theory paper (70 marks), Optics carries the most (18 marks), followed by Magnetic Effects of Current and Magnetism, and Electromagnetic Induction and Alternating Currents (16 marks). The full unit-wise split is on our ISC Physics weightage page, taken from CISCE's syllabus for the 2027 exam. Questions can come from every unit, so don't skip any.