CBSE Class 12 Physics Syllabus
Updated on - Jan 12th, 2021 | 03:55 PM by Sushant
Physics as a subject is one of the most important subjects for a student who wants to appear for various entrance examinations like IIT JEE, NEET etc. Students must be aware of the CBSE Class 12 Physics Syllabus to fully prepare for board exams as well as the entrance exams. To score better marks, students must have an in-depth knowledge of the concepts and practice as vigorously as they can. Also, they must ensure that they have covered and practised all the chapters.
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On 7th July, the HRD Minister Ramesh Nishank announced to reduce the CBSE syllabus to 30% for the academic year because of the pandemic. We have curated the detailed CBSE Class 12 Physics Syllabus for students convenience and preparation.
CBSE Class 12 Physics Syllabus
The CBSE Class 12 Physics exam is divided into practical and theory exam. Theory exam will be conducted for 70 marks whereas the practical exams will be for 30 marks. The duration of the examination will be 3 hours. Therefore, we have curated a chapter-wise marking scheme for students to cover the chapters in a right order.
|Chapter 1 - Electric Charges and Fields|
|Chapter 2 - Electrostatic Potential and Capacitance|
|Unit 2||Current Electricity|
|Chapter 3 - Current Electricity|
|Unit 3||Magnetic Effects of Current and Magnetism||
|Chapter 4 - Moving Charges and Magnetism|
|Chapter 5 - Magnetism and Matter|
|Unit 4||Electromagnetic Induction and Alternating Currents|
|Chapter 6 - Electromagnetic Induction|
|Chapter 7 - Alternating Current|
|Unit 5||Electromagnetic Waves||
|Chapter 8 - Electromagnetic Waves|
|Chapter 9 - Ray Optics and Optical Instruments|
|Chapter 10 - Wave Optics|
|Unit 7||Dual Nature of Radiation and Matter||
|Chapter 11 - Dual Nature of Radiation and Matter|
|Unit 8||Atoms and Nuclei|
|Chapter 12 - Atoms|
|Chapter 13 - Nuclei|
|Unit 9||Electronic Devices||
|Chapter 14 - Semiconductor
Electronics: Materials, Devices and Simple Circuits
CBSE Class 12 Physics Syllabus - Chapter Wise
Below is the chapter wise details of the CBSE Class 12 Physics Syllabus with number of periods included, for students to prepare for the Class 12 board exams.
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.
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 polarisation, 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.
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, electrical resistance, V-I characteristics (linear and non-linear), electrical energy and power, electrical resistivity and conductivity, Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors; 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 laws and simple applications, Wheatstone bridge, metre bridge.
- Potentiometer – principle and its applications to measure potential difference and for comparing EMF of two cells; measurement of internal resistance of a cell.
Chapter 4 - Moving Charges and Magnetism
- Concept of magnetic field, Oersted's experiment.
- Biot - Savart law and its application to current carrying circular loop.
- Ampere's law and its applications to infinitely long straight wire. Straight and toroidal solenoids (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; moving coil galvanometer-its current sensitivity and conversion to ammeter and voltmeter.
Chapter 5 - Magnetism and Matter
- Current loop as a magnetic dipole and its magnetic dipole moment, magnetic dipole moment of a revolving electron, magnetic field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole (bar magnet) in a uniform magnetic field; bar magnet as an equivalent solenoid, magnetic field lines; earth’s magnetic field and magnetic elements.
- Para-, dia- and ferro – magnetic substances, with examples. Electromagnets and factors affecting their strengths, permanent magnets.
Chapter 6 - Electromagnetic Induction
- Electromagnetic induction; Faraday’s laws, induced EMF and current; Lenz’s Law, Eddy currents. Self and mutual induction.
Chapter 7 - Alternating Current
- Alternating currents, peak and RMS value of alternating current/voltage
- Reactance and impedance; LC oscillations (qualitative treatment only), LCR series circuit, resonance
- Power in AC circuits
- AC generator and transformer.
Chapter 8 - Electromagnetic Waves
- Electromagnetic waves, their characteristics, their Transverse nature (qualitative ideas only).
- Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays) including elementary facts about their uses.
Chapter 9 - Ray Optics and Optical Instruments
- Ray Optics: Refraction of light, total internal reflection and its applications, optical fibres, refraction at spherical surfaces, lenses, thin lens formula, lensmaker'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 wave 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, coherent sources and sustained interference of light, diffraction due to a single slit, width of central maximum, resolving power of microscope and astronomical telescope, polarisation, plane polarised light, Brewster’s law, uses of plane polarised light and Polaroids.
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.
Chapter 12 - Atoms
- Alpha-particle scattering experiment; Rutherford's model of atom
- Bohr model, energy levels, hydrogen spectrum.
Chapter 13 - Nuclei
- Mass-energy relation, mass defect, nuclear fission, nuclear fusion.
Chapter 14 - Semiconductor Electronics: Materials, Devices and Simple Circuits
- Energy bands in conductors, semiconductors and insulators (qualitative ideas only)
- Semiconductor diode – I-V characteristics in forward and reverse bias, diode as a rectifier.
- Special purpose p-n junction diodes: LED, photodiode, solar cell and Zener diode and their characteristics, zener diode as a voltage regulator.
CBSE Class 12 Physics Syllabus - Prescribed Books
- Physics, Class - XII, Part 1 and 2, Published by NCERT
- Lab Manual of Physics, Class - XII, Published by NCERT