CBSE Class 12 physics syllabus 2022-23 has been released on the official website and students can download the syllabus in PDF format. In this article, we have included all the units with mark distribution and several periods to complete the portion. We have also included the question paper design and the practical exam syllabus with marks distribution. Class 12th is the final stage of school life. After 12th students have to go for higher studies. Physics is a very vast subject and students can take physics as their as the main subject for higher studies. Students who are preparing for the competitive exams must go through the syllabus for classes 12th and 11th. The syllabus will help the students to keep a check on the completed portion and the incompleted portion so that they can manage their time accordingly and set their study timetable.
CBSE class 12 physics syllabus 2022-23, is available on the official website of CBSE for the students. CBSE class 12 physics syllabus has 9 units, electrostatics, current electricity, magnetic effect of current and magnetism, electromagnetic induction and alternating current, electromagnetic waves, optics, dual nature of radiation and matter, atoms and nuclei, electronic devices. The theory paper is 70 marks and the practical exam is 30 marks together with the CBSE class 12 exam is 100 marks. Of all the units Unit 5 which is electromagnetic waves and unit 6 which is optics carry the highest marks which are 18 out of 70. Students do not have to worry about 9 units because all the units have two maximum chapters. If the students prepare well and start with the detailed view of CBSE class 12th physics syllabus 2022-23, They can score good marks. Below the given table is an expanded view of CBSE class 12th physics 2022-23 units with marks distribution and several periods.
|Units||Name of the unit||No. of Periods||Marks|
|Magnetic Effects of Current and Magnetism||
|Unit-IV||Electromagnetic Induction and Alternating Currents||
|Unit–VII||Dual Nature of Radiation and Matter||
|Unit–VIII||Atoms and Nuclei||
CBSE Class 12 Physics Syllabus 2022-23 unit-wise detailed syllabus is given below.
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 a uniform electric field.
Electric flux is, a statement of Gauss’s theorem and its applications to find fields due to infinitely long straight wire, uniformly charged infinite plane sheet, and uniformly charged thin spherical shell (field inside and outside).
Electric potential, potential difference, electric potential due to a point charge, a dipole and system of charges; equipotential surfaces, the electrical potential energy of a system of two point charges, and electric dipole in an electrostatic field.
Conductors and insulators, free charges, and bound charges inside a conductor. Dielectrics and electric polarization, capacitors and capacitance, a combination of capacitors in series and parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a capacitor (no derivation, formulae only).
Chapter–3: Current Electricity
Electric current, the 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, the temperature dependence of resistance, Internal resistance of a cell, potential difference and emf of a cell, a combination of cells in series and parallel, Kirchhoff’s rules, Wheatstone bridge.
Concept of the magnetic field, Oersted’s experiment. Biot – Savart law and its application to current carrying circular loop. Ampere’s law and its applications to an 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, the force between two parallel current-carrying conductors-definition of an ampere, torque experienced by a current loop in a uniform magnetic field; Current loop as a magnetic dipole and its magnetic dipole moment, moving coil galvanometers current sensitivity and conversion to ammeter and voltmeter.
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 ferromagnetic substances with examples, Magnetization of materials, the effect of temperature on magnetic properties.
Electromagnetic induction; Faraday’s laws, induced EMF and current; Lenz’s Law, Self, and mutual induction.
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.
The 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) includes elementary facts about their uses.
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, a 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.
Wave optics: Wavefront and Huygen’s principle, reflection, and refraction of plane wave at a plane surface using wavefronts. 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).
Dual nature of radiation, Photoelectric effect, Hertz and Lenard’s
observations; Einstein’s photoelectric equation-particle nature of light.
Experimental study of the photoelectric effect
Matter waves-wave nature of particles, de-Broglie relation.
Alpha-particle scattering experiment; Rutherford’s model of atom; Bohr model of the hydrogen atom, Expression for the radius of the nth possible orbit, velocity and energy of an electron in his orbit, of hydrogen line spectra (qualitative treatment only).
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.
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.
CBSE class 12 physics practical exams are 30 marks. These 30 marks are divided into 5 parts, two experiments, a practical record, an activity, an investigatory project, and viva voce. There are two sections of 10 experiments from which students have two complete two experiments during the exam. Store students have to submit their practical records before the exam. Below given table and the further details will tell the students about the practical exams thoroughly.
|CBSE Class 12 Physics Syllabus 2022-23: Practicals
|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|
List of Practicals and Activities performed by the students
To verify the laws of combination (parallel) of resistances using a meter bridge.
To convert the given galvanometer (of known resistance and figure of merit) into an ammeter of desired range and to verify the same.
Fuse, and a power source.
(a) the power of the incandescent lamp used to ‘illuminate’ the LDR (keeping all the lamps at a fixed distance).
(b) the distance of an incandescent lamp (of fixed power) used to ‘illuminate’ the LDR.
Meter scale, the general shape of the voltmeter/ammeter, battery/power supply, connecting wires, standard resistances, connecting wires, voltmeter/ammeter, meter bridge, screw gauge, jockey Galvanometer, Resistance Box, standard Resistance, connecting wires, Potentiometer, jockey, Galvanometer, Lechlanche cell, Daniell cell [simple distinction between the two vis-à-vis their outer (glass and copper) containers], rheostat connecting wires, Galvanometer, resistance box, Plug-in and tapping keys, connecting wires battery/power supply, Diode, Resistor (Wire-wound or carbon ones with two wires connected to two ends), capacitors (one or two types), Inductors, Simple electric/electronic bell, battery/power supply, Plugin and tapping keys, Convex lens, concave lens, convex mirror, concave mirror, Core/hollow wooden cylinder, insulated wire, ferromagnetic rod, Transformer core, insulated wire.
List of Practicals
(i) a convex lens and a concave lens
(ii) a convex mirror and a concave mirror and to estimate the likely difference between the power of two given convex /concave lenses.
(i) change in the number of turns
(ii) Introduction of the ferromagnetic material as its core material on the inductance of the coil.
|S||Typology of Questions||Total Marks||Approximate Percentage|
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