Structure of Matter. States of matter: Solid, liquid and gas. Classification of solids: amorphous, crystalline, ceramics & polymers, Atomic arrangement in solids. Different types of bonds in solids: metallic, Van der Walls, ionic bond, packing in solids. Inter-atomic distances and forces of equilibrium, x-ray diffraction: Bragg’s law. Plasticity and elasticity. Distinction between metal, insulator and semiconductor.
Waves & Oscillations: Simple harmonic motion, damped simple harmonic oscillation, forced oscillations, resonance. Vibrations of membranes &. columns, combinations &. composition of simple harmonic motions. Lissajous’ figures. Transverse &. longitudinal nature of waves, traveling & standing waves, intensity of a wave, energy calculation of progressive & stationary waves. Phase velocity, group velocity. Sound waves: velocity of longitudinal wave in a gaseous medium, Doppler effect. Architectural acoustics: Sabine’s formula, requisites of a good auditorium.