Class 12 Physics Syllabus 2022-23 by Physics Linx YouTube Channel.pdf

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Class 12th Syllabus 2022-23
Physics
Full Marks : 70 Marks
Time Duration : 3 Hours
Analysis by : Physics Linx YouTube Channel
Physics Linx – Anil Kumar

Ch-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).
No Deletion
By Physics Linx – Anil Kumar YouTube Channel

Ch-2 : Electrostatic Potential & 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).
Changes : energy stored in a capacitor (no derivation, formulae only).

Ch-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.
Deleted Topics : Electrical Resistance, Carbon Resistor Carbon
resistors, colour code for carbon resistors; series and parallel
combinations of resistors;
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.

Ch-4 : Moving Charges & 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 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
Deleted Topics : toroidal solenoids, Cyclotron.

Ch-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.
Deleted Topics : magnetic dipole moment of a revolving
electron, earth's magnetic field and magnetic elements
Electromagnets and factors affecting their strengths, permanent
magnets.

Ch-5 : Magnetism and Matter
Changes : 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
Added : Magnetisation of materials, Effect of Temperature on
Magnetic Properties

Ch-6 : Electromagnetic Induction
Electromagnetic induction; Faraday's laws, induced EMF and
current; Lenz's Law, Self and mutual induction.
Deleted Topics : Eddy Current

Ch-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.
Deleted Topics : LC Oscillation
Changes : LCR series circuit (phasors only),

Ch-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.
No Deletion

Ch-9 : Ray Optics & Optical Instruments
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.
Deleted Topics : Application of total internal reflection, Scattering
of light - blue colour of sky and reddish appearance of the sun at
sunrise and sunset.

Ch-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 (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).
Deleted Topics : resolving power of microscope and astronomical
telescope, polarisation, plane polarised light, Brewster's law, uses of plane
polarised light and Polaroids.
Changes : Expression for fringe width (No derivation final expression
only), diffraction due to a single slit, width of central maxima (qualitative
treatment only).

Ch-11 : Dual Nature of Radiation & 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.
Deleted Topics : Davisson-Germer experiment

Ch-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 his orbit, hydrogen line spectra
(qualitative treatment only).
Changes : hydrogen line spectra (qualitative treatment only).

Ch-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.
Deleted Topics : Radioactivity, alpha, beta and gamma particles/rays
and their properties; radioactive decay law.

Ch-14 : Semiconductor
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.
Deleted Topics : After Diode as a rectifier everything is deleted

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