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Class XII : Physics : Pre-Board/ Board Final Exam : 2022-23 : Marks 70
Blue Print of Distribution of Marks
Unit Topics MCQ (1) VSA (1) SA I (2) SA II (3) LA II (5) Total
Marks
Chapter– 1x1 - 2x1 -
1:ElectricChargesandFields
I Chapter– 5x1 16
1x1 - -
2:ElectrostaticPotentialand
Capacitance
II Chapter–3:CurrentElectricity 1x1 1x1 2x1 3x1
MagneticEffectsofCurrentandMagnetism
Chapter–4: MovingCharges - 1x1
andMagnetism
III Chapter–5:Magnetism andMatter 3x1
1x1
Chapter– 2x1 5x1
- 1x1
6:ElectromagneticInduction 17
IV
Chapter–7:AlternatingCurrent 1x1 - - 3x1
ElectromagneticWaves
V Chapter– - - - 3x1
8:ElectromagneticWaves
Chapter– 18
1x1 1x2 2x1 -
9:RayOpticsandOpticalInstrument 5x1
VI s
Chapter–10: WaveOptics 1x1 1x1 - 3x1
VII Chapter– 1x1 1x1 2x1 - -
11:DualNatureofRadiationandMa
tter 12
Chapter–12:Atoms 1x1 1x1 - - -
VIII Chapter–13:Nuclei - 1x1 2x1 3x1 -
IX Chapter– 1x1 1x1 2x1 3x1 - 7
14:SemiconductorElectronics:Mat
erials,Devicesand Simple Circuits
Total Marks (Questions) 1x10 1x10 2x7 3x7 5x3 70
(10) (10) (7) (7) (3) (37)
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Syllabus : Class XIi : Physics : 2022-23 : Marks 70
UNIT TOPICS MARKS
Unit–I Electrostatics
Chapter–1: Electric Charges and Fields
Chapter–2: Electrostatic Potential and Capacitance 16
Unit-II Current Electricity
Chapter–3: Current Electricity
Unit-III Magnetic Effects of Current and Magnetism
Chapter–4: Moving Charges and Magnetism
17
Unit-IV Electromagnetic Induction and Alternating Currents
Unit–V Electromagnetic Waves
Chapter–8: Electromagnetic Waves
Unit–VI Optics 18
Unit–VII Dual Nature of Radiation and Matter
Unit–VIII Atoms and Nuclei 12
Unit–IX Electronic Devices
7
Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits
Total 70
Unit I: Electrostatics
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 and uniformly charged thin spherical shell (field inside and outside).
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
(no derivation, formulae only).
Unit II: Current Electricity : 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, 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.
Unit III: Magnetic Effects of Current and Magnetism
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 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; Current loop as a magnetic
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dipole and its magnetic dipole moment, moving coil galvanometer- its 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 ferro- magnetic substances with examples, Magnetisation of
materials, effect of temperature on magnetic properties.
Unit IV: Electromagnetic Induction and Alternating Currents
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 and transformer.
Unit V: Electromagnetic waves : 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
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,
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: Wave front and Huygens’s principle, reflection and refraction of plane wave at a plane surface using
wave fronts. Proof of laws of reflection and refraction using Huygens’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 maximum (qualitative treatment only).
Unit VII: 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.
Unit VIII: Atoms and Nuclei
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 this orbit, 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.
Unit IX: Electronic Devices : Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits
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 as a rectifier.