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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