Refresher Course in Physics Volume -III, Section-I: Solid State Physics: 1. Crystal Structure, 2. Crystal Diffraction and Reciprocal Lattice, 3. Crystal Bonding, 4. Lattice Vibrations, 5. Free Electron Theory of Metals, 6. Band Theory of Solids, 7. Semiconductors, 8. Super Conductivity, 9. Magnetic and Dielectric Properties, Section-II: Electronics: 1. Semi-Conductor Diodes, 2. Rectifiers and Filters, 3. Bipolar Junction Transistors, 4. Field Effect Transistor, 5. Transistor Biasing, 6. Feedback Amplifiers, 7. Oscillators, 8. Modulation and Detection, 9. Radio Communication, 10. Cathode Ray Oscillograph and Television, 11. Valve Electronics, 12. Network Theorems, Section-III: Nuclear And Particle Physics: 1. Atomic Nucleus, Nuclear Models, 3. Radioactivity, 4. Nuclear Reactions and Fissions, 5. Interaction of Nuclear Radiation with Matter, 6. Particle Accelerators, 7. Radiation Detectors, 8. Cosmic Rays and Elementary Particles