Contents : 1. Physics of Solids 2. Physics of Liquids and Gases 3. Reality of Atoms 4. Model of Atoms 5. Radioactivity 6. Atomic Structure 7. Electrostatic Force 8. Magnetic Force 9. Wave Generation and Propagation 10. Lasers 11. Mass and Energy 12. Relativity 13. The Speed of Light 14. The Michelson-Morley Experiment 15. Particles and Waves.