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CBSE Class 12 Physics Syllabus

Updated on - Jan 12th, 2021 | 03:55 PM by Sushant

CBSE Class 12 Physics SyllabusPhysics 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.

⭐Best Reference Books for CBSE Class 12 Chemistry ⭐CBSE 12th Syllabus 2021

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. 

Unit Chapters Name Marks
Unit 1 Electrostatics
16
  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
17
  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
18
  Chapter 8 - Electromagnetic Waves
Unit 6 Optics
  Chapter 9 - Ray Optics and Optical Instruments
  Chapter 10 - Wave Optics
Unit 7 Dual Nature of Radiation and Matter
12
  Chapter 11 - Dual Nature of Radiation and Matter
Unit 8 Atoms and Nuclei
  Chapter 12 - Atoms
  Chapter 13 - Nuclei
Unit 9 Electronic Devices
7
  Chapter 14 - Semiconductor
Electronics: Materials, Devices and Simple Circuits
Total   70

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 

(10 periods)

  • 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

(12 periods)

  • 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

(20 periods)

  • 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

(12 periods)

  • 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

(10 periods)

  • 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

(10 periods)

  •  Electromagnetic induction; Faraday’s laws, induced EMF and current; Lenz’s Law, Eddy currents. Self and mutual induction.

Chapter 7 - Alternating Current

(10 periods)

  • 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

(04 periods)

  • 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

(12 periods)

  • 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

(15 periods)

  • 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

(08 periods)

  • 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

(10 periods)

  • Alpha-particle  scattering  experiment;  Rutherford's  model  of atom
  • Bohr  model,  energy levels, hydrogen spectrum.

Chapter 13 - Nuclei

(05 periods)

  • Mass-energy relation, mass defect, nuclear fission, nuclear fusion.

Chapter 14 - Semiconductor Electronics: Materials, Devices and Simple Circuits

(12 periods)

  • 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

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