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In the 20th century ― the age of "modern physics" ― our view of the physical universe underwent a revolution. This book Developments in Modern Physics presents the fundamentals and frontiers of contemporary physics to the most gifted pupils. Typically, students must take multiple courses to cover the majority of these topics. The purpose is to give them a sense of where they're heading and how everything fits together as they go. Quantum mechanics. nuclear physics, particle physics, special relativity, condensed-matter physics, relativistic quantum mechanics, and general relativity are the main topics covered in this book. The objective is to address these topics in considerable depth such that students "get" them and have a basic understanding of them. The book presupposes a one-year calculus-based introductory physics course and a one-year calculus course. Several appendices educate the reader on any additional mathematics that may be required. Numerous problems are presented, the majority of which will lead dedicated readers as far as they wish in modern physics. Cover Title Page Copyright ABOUT THE AUTHOR TABLE OF CONTENTS List of Figures List of Tables List of Abbreviations Preface Chapter 1 Introduction to Modern Physics 1.1. Introduction 1.2. Journey of Physics to Modern Physics 1.3. Important Discoveries in Modern Physics 1.4. Origin of the Theory of Relativity 1.5. Solid State Physics 1.6. Atomic Theory 1.7. John Dalton 1.8. Avogadro 1.9. Brownian Motion 1.10. The Advent of Quantum Theory References Chapter 2 Spacetime and General Relativity 2.1. Introduction 2.2. Spacetime Diagrams 2.3. The Invariant Interval References Chapter 3 Quantum Physics 3.1. Introduction 3.2. Blackbody Radiation 3.3. The Photoelectric Effect 3.4. The Properties of the Photon 3.5. The Compton Effect 3.6. The Wave Nature of Particles 3.7. The Wave Representation of a Particle 3.8 The Heisenberg Uncertainty Principle 3.9. Different Forms of the Uncertainty Principle References Chapter 4 Elementary Particle Physics 4.1. Introduction 4.2. Particles and Antiparticles 4.3. The Four Forces of Nature 4.4. Quarks 4.5. The Electromagnetic Force 4.6. The Electroweak Force 4.7. The Gravitational Force and Quantum Gravity References Chapter 5 Nuclear Physics 5.1. Introduction 5.2. Nuclear Structure 5.3. Radioactive Decay Law 5.4. Forms of Radioactivity 5.5. Radioactive Series 5.6. Energy in Nuclear Reactions 5.7. Nuclear Fission 5.8. Nuclear Fusion References Chapter 6 Cosmology and Modern Astrophysics 6.1. Introduction 6.2. Evidence of the Big Bang 6.3. Hubble’s Measurements 6.4. Cosmic Microwave Background Radiation 6.5. Nucleosynthesis 6.6. The Big Bang 6.7. Stellar Evolution 6.8. The Ultimate Fate of Stars 6.9. Astronomical Objects References Chapter 7 Physics of Semiconducting Lasers 7.1. Introduction 7.2. Basic Laser Theory 7.3. Semiconductor Lasers 7.4. Semiconductor Laser Materials 7.5. Applications 7.6. Recent Development: Quantum Dot Lasers References Chapter 8 Physics of Ferroelectrics 8.1. Introduction 8.2. Hysteresis Loops and Switching 8.3. Crystallographic Signature of Ferroelectricity 8.4. Materials 8.5. Usages of Ferroelectric Materials References Index Back Cover