3. Waves and Oscillation : Simple harmonic motion Wave motion Travelling wave, superposition of waves, standing waves, Beats, Composition of two perpendicular simple harmonic motion and Lissajous figures. Damped oscillation in mechanical and electrical systems. Forced oscillations and resonance. Simple oscillatory systems: vibration of rods, strings and air columns. Doppler effect. Ultrasonics, Fourier analysis of simple periodic waves (rectangular and saw-tooth).

Optics : Nature and propogation of light, Interference, Division of wave-front and amplitude, Simple interferometers. Diffraction, Fraunhoffer and Fresnel diffraction, Gratings, Zone plate. Determination of wavelength of spectral lines. Polarization of light. Brewster’s law, production and detection of polarized light, electromagnetic, spectrum, rayleigh scattering, Raman effect. Laser, Coherence Population inversion, He-Ne laser.
Thin.lens formula, Cardinal points, combination of coaxial thin lenses, spherical and chromatic aberrations and their correction. Optical instruments, eye-pieces, microscopes, telescopes, Rayleigh’s criterion of resolving power, Resolving power of optical instruments.
5. Electricity and Magnetism : Electric Charge, field and potentional, electric dipole,
Gauss’s law and its application. Dielectrics, Capacitance, Electric current. Ohm’s law. Kirchoff’s law. wheatston’s bridge and its application. Potentiometer, Biot-Savart’s law. Motion of charged particle in magnetic field, Hall effect, moving coil galvanometer. Faraday’s laws of electro-magnetic induction, Lenz’s law, self and mutual inductance and their applications. Alternating current, LCR circuits. Reactance, Impedance, Dynamo Motors, Thermoelectricity, seebeck, peltier and Thomson effects and their application, electromagnetic waves : Maxwell’s equations, Hertz experiment, Particle accelerators, Cyclotron Betatrol, Mass spectrometers, Dia-, para-and ferro-magnetism.

6 Modem Physics: Measurement of electronic charge and specific charge e/m, Measurement of Planck’s Constant, Rutherford atomic model; Bohr’s theory of hydrogen atom, Optical and X-ray spectra, Bragg’s law, Mosley’s law. Photo-electric and Comption effects. Wave nature of matter, wave particle duality, De-Broglie’s wave, uncertainty
principle. Natural and artificial radio activity: á, â and g-emissions, chain decay. Elementary-Ideas of nuclear structure. Nuclear fission and fusion, elementary particles and their classification.

7. Electronics: Elements of semi-conductor physics. Intrinsic and extrinsic semi-conductors, resistivity and its temperature variation, P-N junction and its applications. P-N-P and N-P-N transistors and their applications. Logic gates.