CBSE Class 12 Physics Syllabus 2025-26 PDF Download; Check Marking Scheme

Overview

Details

Board Name:

Central Board of Secondary Examination

Class:

12

Subject:

Physics

Subject Code: 

042

Total Marks:

100 

Theory Marks:

70

Project Marks: 

30

Exam Duration:

3 Hours

Total Sections:

2 Sections (Theory & Internal)

Unit I: Electrostatics

Chapter–1: Electric Charges and Fields 

Electric charges, Conservation of charge, Coulomb's law-force between two- point charges, forces between multiple charges; superposition principle and continuous charge distribution. Electric field, electric field due to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in uniform electric field. 

Electric flux, statement of Gauss's theorem and its applications to find field due to infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell (field inside and outside). 

Chapter–2: Electrostatic Potential and Capacitance 

Electric potential, potential difference, electric potential due to a point charge, a dipole and system of charges; equipotential surfaces, electrical potential energy of a system of two-point charges and of electric dipole in an electrostatic field. 

Conductors and insulators, free charges and bound charges inside a conductor. Dielectrics and electric polarization, capacitors and capacitance, combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a capacitor (no derivation, formulae only).

Unit II: Current Electricity

Chapter–3: Current Electricity 

Electric current, flow of electric charges in a metallic conductor, drift velocity, mobility and their relation with electric current; Ohm's law, V-I characteristics (linear and non-linear), electrical energy and power, electrical resistivity and conductivity, temperature dependence of resistance, Internal resistance of a cell, potential difference and emf of a cell, combination of cells in series and in parallel, Kirchhoff's rules, Wheatstone bridge. 

Unit III: Magnetic Effects of Current and Magnetism

Chapter–4: Moving Charges and Magnetism 

Concept of magnetic field, Oersted's experiment. Biot - Savart law and its application to the current carrying circular loop. Ampere's law and its applications to infinitely long straight wire. Straight solenoid (only qualitative treatment), force on a moving charge in uniform magnetic and electric fields. 

Force on a current-carrying conductor in a uniform magnetic field, force between two parallel current-carrying conductors-definition of ampere, torque experienced by a current loop in uniform magnetic field; Current loop as a magnetic dipole and its magnetic dipole moment, moving coil galvanometer- its current sensitivity and conversion to ammeter and voltmeter. 

Chapter–5: Magnetism and Matter 

Bar magnet, bar magnet as an equivalent solenoid (qualitative treatment only), magnetic field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis (qualitative treatment only), torque on a magnetic dipole (bar magnet) in a uniform magnetic field (qualitative treatment only), magnetic field lines. 

Magnetic properties of materials- Para-, dia- and ferro – magnetic substances with examples, Magnetization of materials, effect of temperature on magnetic properties. 

Unit IV: Electromagnetic Induction and Alternating Currents

Chapter–6: Electromagnetic Induction 

Electromagnetic induction; Faraday's laws, induced EMF and current; Lenz's Law, Self and mutual induction. 

Chapter–7: Alternating Current 

Alternating currents, peak and RMS value of alternating current/voltage; reactance and impedance; LCR series circuit (phasors only), resonance, power in AC circuits, power factor, wattless current. AC generator, Transformer. 

Unit V: Electromagnetic waves

Chapter–8: Electromagnetic 

Waves Basic idea of displacement current, Electromagnetic waves, their characteristics, their transverse nature (qualitative idea only). 

Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays) including elementary facts about their uses.

Unit VI: Optics

Chapter–9: Ray Optics and Optical Instruments 

• Ray Optics: Reflection of light, spherical mirrors, mirror formula, refraction of light, total internal reflection and optical fibers, refraction at spherical surfaces, lenses, thin lens formula, lens maker’s formula, magnification, power of a lens, combination of thin lenses in contact, refraction of light through a prism. 
• Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers. 

Chapter–10: Wave Optics 

• Wave optics: Wave front and Huygen’s principle, reflection and refraction of plane waves at a plane surface using wave fronts. 
• Proof of laws of reflection and refraction using Huygen’s principle. Interference, Young's double slit experiment and expression for fringe width (No derivation final expression only), coherent sources and sustained interference of light, diffraction due to a single slit, width of central maxima (qualitative treatment only). 

Unit VII: Dual Nature of Radiation and Matter 

Chapter–11: Dual Nature of Radiation and Matter 

Dual nature of radiation, Photoelectric effect, Hertz and Lenard's observations; Einstein's photoelectric equation-particle nature of light. 

Experimental study of photoelectric effect Matter waves-wave nature of particles, de-Broglie relation.

Unit VIII: Atoms and Nuclei 

Chapter–12: Atoms 

Alpha-particle scattering experiment; Rutherford's model of atom; Bohr model of hydrogen atom, Expression for radius of nth possible orbit, velocity and energy of electron in nth orbit, hydrogen line spectra (qualitative treatment only). 

Chapter–13: Nuclei 

Composition and size of nucleus, nuclear force 

Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number; nuclear fission, nuclear fusion.

Unit IX: Electronic Devices 

Chapter–14: Semiconductor Electronics: 

Materials, Devices and Simple Circuits Energy bands in conductors, semiconductors and insulators (qualitative ideas only) Intrinsic and extrinsic semiconductors- p and n type, p-n junction Semiconductor diode - I-V characteristics in forward and reverse bias, application of junction diode -diode as a rectifier.

Two experiments one from each section

7+7 Marks

Practical record [experiments and activities] 

5 Marks

One activity from any section

3 Marks

Investigatory Project 

3 Marks

Viva on experiments, activities and project

5 Marks

Total

30 Marks 

Download CBSE Class 12 Physics Syllabus 2025-2026 PDF

Typology of Questions

Total Marks

Approximate Percentage

Remembering: Exhibit memory of previously learned material by recalling facts, terms, basic concepts, and answers. 

Understanding: Demonstrate understanding of facts and ideas by organising, comparing, translating, interpreting, giving descriptions, and stating main ideas.

27

38

Applying: Solve problems to new situations by applying acquired knowledge, facts, techniques and rules in a different way.

22

32

Analysing: Examine and break information into parts by identifying motives or causes. Make inferences and find evidence to support generalisations. 

Evaluating: Present and defend opinions by making judgments about information, validity of ideas, or quality of work based on a set of criteria. 

Creating: Compile information together in a different way by combining elements in a new pattern or proposing alternative solutions.

21

30

Total

70

100

Practical

30

Gross Total

100