Introduction: Brilluion Zone Theory; Fermi level, Band theory. Thermal Properties: specific heat, thermal expansion & thermal conductivity. Electrical properties: conductors, insulators, intrinsic semiconductors, extrinsic semiconductors. Single crystal growth, zone refining, producion of PNP, NPN transistors, intergrated circuits.Dielectrical - materials and applications, electrostriction, magnetostriction. Ultrasonic transducers: piezoelectric materials and applications, ferroelectric materials and applications. Magnetic Properties: soft magnetic materials, hard magnetic materials, ferrites, garnets, ESD magnets, magnetic tapes, films, ferromagnetic materials, antiferromagnetic materials, materials for computer memories. Neutron diffraction. Superconductivity: Type I, Type II superconductors, hard and soft superconductors, Meissener effect, high temperature superconductors, Applications of superconductors, photoconducting applications. Optical Properties: lasers, gas laser, He-Ne laser, N2CO2, Ar, H2- Cd lasers, liquid lasers, dye lasers, solids laser, ruby, Nd - YA glass lasers, semiconductor diode laser, applications of laser. Optical storage, optical computing, optical fibres.