The CBSE Class 12th Physics Syllabus can be accessed online on the official website of the Board. However, the crucial information related 12th Class syllabus has been given in this article below. Students, who have physics as one of the subjects, are recommended to go through the prescribed syllabus. Physics is an important subject in the science stream. Students have to score good marks in the 12th standard hence, hence, they must focus on study very well. The 12th class syllabus is also important for engineering and medical exams like JEE Main and NEET etc. Check crucial information with regard to the Class 12th Physics subject below.
Table of Contents
CBSE 12th Physics Examination Scheme
- 12th Class Physics paper is divided in two parts i.e. Theory and Practical section.
- Theory paper will consist of 9 units which will be of 70 marks.
- The duration of theory paper will be 3 hours.
- Practical exam will be of 30 marks.
The unit/chapter wise distribution of marks is as under:
| Unit | Chapters | No. Of Periods | Marks |
| Unit-I | Electrostatics |
24 |
16 |
| Chapter–1: Electric Charges and Fields | |||
| Chapter–2: Electrostatic Potential and Capacitance | |||
| Unit-II | Current Electricity |
18 |
|
| Chapter–3: Current Electricity | |||
| Unit-III | Magnetic Effects of Current and Magnetism |
22 |
17 |
| Chapter–4: Moving Charges and Magnetism | |||
| Chapter–5: Magnetism and Matter | |||
| Unit-IV | Electromagnetic Induction and Alternating Currents |
20 |
|
| Chapter–6: Electromagnetic Induction | |||
| Chapter–7: Alternating Current | |||
| Unit-V | Electromagnetic Waves |
04 |
18 |
| Chapter–8: Electromagnetic Waves | |||
| Unit-VI | Optics |
27 |
|
| Chapter–9: Ray Optics and Optical Instruments | |||
| Chapter–10: Wave Optics | |||
| Unit-VII | Dual Nature of Radiation and Matter |
08 |
12 |
| Chapter–11: Dual Nature of Radiation and Matter | |||
| Unit-VIII | Atoms and Nuclei |
15 |
|
| Chapter–12: Atoms | |||
| Chapter–13: Nuclei | |||
| Unit-IX | Electronic Devices |
12 |
7 |
| Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits | |||
| Total | 150 | 70 |
CBSE 12th Physics Syllabus 2022-23: Unit-wise Details
Students can check here unit wise syllabus of CBSE 12th class below.
Unit I: Electrostatics (24 Periods)
Chapter-1: Electric Chargers and Fields
Electric Charges; Conservation of charge, forces between multiple charges; Coulomb’s law-force between two point charges, superposition principle and continuous charge distribution.
Electric field, electric field due to a point charge, electric dipole, electric field lines, torque on a dipole in uniform electric field. electric field due to a dipole.
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, electric potential due to a point charge, potential difference, 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, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, combination of capacitors in series and in parallel, energy stored in a capacitor.
Unit II: Current Electricity (18 Periods)
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 resistivity and conductivity, electrical energy and power, Carbon resistors, colour code for carbon resistors; temperature dependence of resistance, series and parallel combinations of resistors.
Internal resistance of a cell, combination of cells in series and in parallel, potential difference and emf of a cell, Kirchhoff’s laws and simple applications, metre bridge, Wheatstone bridge.
Potentiometer – principle and its applications to measure potential difference and for comparing EMF of two cells; measurement of internal resistance of a cell.
Unit III: Magnetic Effects of Current and Magnetism (22 Periods)
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, Cyclotron.
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 field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, magnetic dipole moment of a revolving electron, 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.
Unit IV: Electromagnetic Induction and Alternating Currents (20 Periods)
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 factor, power in AC circuits, wattless current. AC generator and transformer.
Unit V: Electromagntic Waves (4 Periods)
Chapter–8: Electromagnetic Waves
Basic idea of displacement current, 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.
Unit VI: Optics
Chapter–9: Ray Optics and Optical Instruments
Ray Optics: Reflection of light, mirror formula, spherical mirrors, 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.
Scattering of light – blue colour of sky and reddish apprearance of the sun at sunrise and sunset.
Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers.
Chapter-10: 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.
Unit VII: Dual Nature of Radiation and Matter (8 Periods)
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, Davisson-Germer experiment (experimental details should be omitted; only conclusion should be explained).
Unit VIII: Atoms and Nuclei
Chapter-12: Atoms
Alpha-particle scattering experiment; Rutherford’s model of atom; Bohr model, energy levels, hydrogen spectrum.
Chapter-13: Nuclei
Composition and size of nucleus, Radioactivity, alpha, beta and gamma particles/rays and their properties; radioactive decay law, half life and mean life.
Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number; nuclear fission, nuclear fusion.
Unit IX: Electronic Devices (12 Periods)
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 Class Physics Syllabus 2022: Practical Exam
Time: Three Hours
Maximum Marks: 30
| 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 |
Experiments
SECTION-A
- To determine resistivity of two / three wires by plotting a graph for potential difference versus current.
- To verify the laws of combination (series) of resistances using a metre bridge.
- To find resistance of a given wire / standard resistor using metre bridge.
OR
To verify the laws of combination (parallel) of resistances using a metre bridge.
- To compare the EMF of two given primary cells using potentiometer.
- To determine resistance of a galvanometer by half-deflection method and to find its figure of merit.
- To determine the internal resistance of given primary cell using potentiometer.
- To convert the given galvanometer (of known resistance and figure of merit) into a voltmeter of desired range and to verify the same
OR
To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same.
- To find the frequency of AC mains with a sonometer.
SECTION-B
- To find the value of v for different values of u in case of a concave mirror and to find the focal length.
- To find the focal length of a convex mirror, using a convex lens.
- To find the focal length of a concave lens, using a convex lens.
- To find the focal length of a convex lens by plotting graphs between u and v or between 1/u and 1/v.
- To determine angle of minimum deviation for a given prism by plotting a graph between angle of incidence and angle of deviation.
- To determine refractive index of a glass slab using a travelling microscope.
- To find refractive index of a liquid by using convex lens and plane mirror.
- To draw the I-V characteristic curve for a p-n junction diode in forward bias and reverse bias.
- To draw the characteristic curve of a zener diode and to determine its reverse breaks down voltage.
CBSE 12th Class Syllabus 202-23: All Subjects
CBSE 12 Class Physics Syllabus 2022: Downlaod PDF Here
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