Physics Class 12 (12+JEE/12+NEET)
Unit I: Electrostatics. This unit deals with the electric charges and fields, Coulomb’s law, the electric field and electric field lines, the electric flux, Gauss’s law, and its applications, the electric potential and potential difference, the equipotential surfaces, the electric dipole, the capacitance and capacitors, the combination of capacitors, the energy stored in a capacitor, and the Van de Graaff generator.
Unit II: Current Electricity. This unit covers the
concepts of electric current, Ohm’s law, resistance and resistivity, the
temperature dependence of resistance, electrical energy and power, the
combination of resistors, Kirchhoff’s laws and their applications, the
Wheatstone bridge, the meter bridge, the potentiometer, the emf and internal
resistance of a cell, and the cells in series and parallel.
Unit III: Magnetic Effects of Current and Magnetism.
This unit explores the magnetic force on a current-carrying conductor, the
motion of a charged particle in a uniform magnetic field, the torque on a
current loop, the magnetic dipole and dipole moment, the magnetic field due to
a current element, the Biot-Savart law, the Ampere’s circuital law and its
applications, the solenoid and toroid, the force between two parallel currents,
the moving coil galvanometer, the conversion of galvanometer into voltmeter and
ammeter, the cyclotron, the bar magnet, the magnetic field lines, the earth’s
magnetic field, the magnetic declination and dip, the magnetization and
magnetic intensity, the magnetic properties of materials, the hysteresis loop,
and the electromagnets.
Unit IV: Electromagnetic Induction and Alternating
Currents. This unit discusses electromagnetic induction, Faraday’s law, Lenz’s
law, the eddy currents, self and mutual induction, alternating currents, the
peak and rms value of alternating current or voltage, the reactance and
impedance, the LC oscillations, the LCR series circuit, the resonance, the
power in AC circuits, the wattless current, the AC generator, and the
transformer.
Unit V: Electromagnetic Waves. This unit describes the
electromagnetic waves, their characteristics, their sources, their transverse
nature, their spectrum, and their applications.
Unit VI: Optics. This unit studies optics, the
reflection and refraction of light, the total internal reflection, the optical
fiber, the lens maker’s formula, the lens formula, the magnification, the power
of a lens, the combination of thin lenses in contact, the refraction and
dispersion of light through a prism, the scattering of light, the optical
instruments, the human eye, the defects of vision and their correction, the
microscope and telescope, the wave optics, the Huygens principle, the reflection
and refraction of plane waves, Young’s double slit experiment, the
interference, the coherent sources and sustained interference of light, the
diffraction due to a single slit, the resolving power of microscope and
telescope, the polarisation, the plane polarised light, the Brewster’s law, the
uses of plane polarised light and polaroids.
Unit VII: The Dual Nature of Radiation and Matter.
This unit explains the dual nature of radiation and matter, the photoelectric
effect, Hertz and Lenard’s observations, Einstein’s photoelectric equation, the
particle nature of light, the photoelectric cells and their applications, the
wave nature of matter, the de Broglie relation, and the Davisson-Germer
experiment.
Unit VIII: Atoms and Nuclei. This unit deals with the
atoms and nuclei, the alpha-particle scattering experiment, Rutherford’s model
of the atom, the Bohr model, the energy levels, the hydrogen spectrum, the
composition and size of the nucleus, the atomic masses, the isotopes, the
isobars and isotones, the radioactivity, the alpha, beta, and gamma particles
and their properties, the radioactive decay law, the half-life and mean life,
the binding energy per nucleon and its variation with mass number, and nuclear
fission and fusion.
Unit IX: Electronic Devices. This unit covers the
electronic devices, such as the semiconductors, the energy bands in solids, the
classification of metals, conductors, and insulators, the intrinsic and
extrinsic semiconductors, the p-n junction, the p-n junction as a diode, the
p-n junction diode, the I-V characteristics of the p-n junction diode, the
diode as a rectifier, the special purpose p-n junction diodes, the LED, the
photodiode, the solar cell, the Zener diode, the Zener diode as a voltage regulator,
the logic gates, the NOT, OR, AND, NAND, NOR, EX-OR, and EX-NOR gates.
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