ICSE Class 12 Physics — Important Questions (Board Exams 2027)
ICSE Class 12 Physics important questions, chapter by chapter — 1830 questions with answers across 32 chapters. For the board exams 2027.
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Each chapter below has important questions with answers for the ICSE board exams 2027. Write your answers out before checking — reading alone doesn't build exam speed.
Chapter-wise Important Questions — 32 Chapters
Like charges attract each other.
The quantisation of electric charge means that q = ±ne, where n is a positive integer.
The value of Coulomb's constant k (= 1/4πε₀) in SI units is:
The magnification produced by a spherical mirror is given by m = -v/u. If the magnification is +0.5 for a mirror, what does this tell us about the image?
According to the New Cartesian Sign Convention, what sign is assigned to the focal length of a concave mirror?
An object is placed between the pole and focus of a concave mirror. What type of image is formed?
A large plane sheet has surface charge density 1.77 × 10^-11 C·m^-2. Find the electric field near the sheet and the field between two such sheets carrying equal and opposite charge densities of this magnitude.
A conducting sphere of radius 0.30 m carries charge 2.7 μC. Find the electric field just outside the surface and the electric field inside the sphere.
A uniformly charged non-conducting sphere has radius 0.50 m and total charge 6.0 μC. Find the electric field at r = 0.20 m from the centre.
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Where can I find ICSE Class 12 Physics Important Questions?
This page has important questions for 32 chapters of ICSE Class 12 Physics for the board exams 2027. Each chapter links to its own page with the full set.
How should I prepare for ICSE Class 12 Physics board exams?
Go through the syllabus first, then work chapter by chapter: learn the ideas, practise questions, and revise with notes and flashcards. Leave time at the end to revise every chapter once more under timed conditions.
Which chapters of ICSE Class 12 Physics should I practise first?
Start with the chapters you find hardest and the ones your teacher flags as high-weightage, then cover the rest. Each chapter page lists its important questions with answers.
Browse Important Questions by Chapter
32 chapters
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
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ICSE Class 12
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