PHY 121 / Physics II (Structure of matter, Modern Physics, Electricity and magnetism): Structure of matter: Hooke’s law; elastic modulli and their inter-relations; bending of beams, cantilever, surface tension; capillarity, concepts of fluid flow, moment of inertia; parallel and perpendicular axes theorems. States of matter: solid, liquid and gas. Classification of solids; amorphous, crystalline, ceramics and polymers. Atomic arrangements in solids. Lattices, basis and crystal structure, unit cell, different types of crystal systems, packing in solids, packing fraction of sc, bcc and fcc lattices. X-ray diffraction, Bragg's law.Modern Physics: Michelson Morley’s experiment. Galilean transformation. Special theory of relativity. Lorentz-transformation. Relative velocity. Length contraction. Time dilation. Mass-energy relation. Photoelectric effect. Compton effect, de-Broglie wave. Bohr’s atom model; radioactive decay, half-life, mean life, isotopes. Nuclear binding energy, alpha, beta, gamma, decay.Electricity and magnetism: Electric charge, Coulomb’s law. The electric field: calculation of the electric field strength, E. A dipole in an electric flux and Gauss’s law. Some application of Gauss’s law. Electric potential V. Relation between E and V. Electric potential energy. Capacitors. Capacitance, Dielectrics; An atomic view, Dielectrics and Gauss’s law; Current and resistance: Current and current density, Ohm’s law. Resistivity: and atomic view, Ampere’s law, Faraday’s law, Lens’s law. Self-Inductance and Mutual Inductance, Magnetic properties of matter: magnetomotive force, magnetic field intensity. Permeability, Susceptibility, Classifications of magnetic materials, Magnetization curves.
