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Primarily intended for the undergraduate students of all branches of engineering, this textbook provides a sound understanding of the fundamental concepts and principles of physics in a simple and easy-to-understand language. Organized in 18 chapters, the book exposes students to the fundamentals of oscillations and waves, interference of light, diffraction, polarization, optical instruments, laser, fibre optics, mechanics and special theory of relativity. Apart from giving a detailed theoretical analysis of these topics, it also provides a deep insight on various advanced topics such as acoustics, ultrasonics and nanotechnology, along with their applications. The pedagogical aids such as solved numerical problems and review questions are also included at the end of each chapter. Key Features Numerous solved examples to stress on the conceptual understanding Chapter-end model questions to probe a student’s grasp of the subject matter Chapter-end objective type questions (with answers) for self-evaluation by the students About The Author G. Aruldhas PhD, was Professor and Head of Physics Department, and Dean, Faculty of Science, University of Kerala. With over four decades of teaching experience at the PG level. Dr. Aruldhas served as CSIR Emeritus Scientist and Director, University Institute of Technology, Kerala University. He published about 145 research papers in various national and international journals. Dr. Aruldhas authored four other books which were published/are being published by PHI Learning. Table of Contents Preface 1. Oscillations And Waves 2. Electro Magnetic Theory 3. Interference 4. Diffraction 5. Polarization 6. Crystallography 7. Superconductivity 8. Special Theory Of Relativity 9. Quantum Mechanics 10. Statistical Mechanics 11. Lasers 12. Holography And Fibre Optics 13. Dielectric Properties Of Materials 14. Magnetic Properties Of Materials 15. Thermal Properties 16. Nanotechnology 17. Ultrasonics 18. Acoustics Of Buildings Appendices I Abbreviation For Units And Physical Constants Ii Metallic Glasses Iii Shape Memory Alloys Iv Biomaterials Answers To Problems Index