Modern Physics Fundamentals: Relativity and Quantum Theory

Classical physics breaks down when examining the very small or the very fast. This course provides a clear, conceptual introduction to the revolutionary ideas that define modern physics. By mastering these concepts, you will gain a deep appreciation for how scientists describe the universe today. You will move beyond classical mechanics to confidently discuss special relativity, the quantum nature of light and matter, and the structure of the atom and nucleus. What you'll learn: * Understand the postulates of special relativity and their consequences on time and space. * Analyze the photoelectric effect and Compton scattering to grasp the particle nature of light. * Apply the concept of wave mechanics and the uncertainty principle to physical systems. * Master the structure of the atom, including Bohr's model and the meaning of quantum numbers. * Practice calculations related to nuclear stability, binding energy, and radioactive decay. * Learn the relationship between mass and energy (E=mc²) and its practical implications. This text-based course guides you step-by-step, starting with the historical transition from classical physics. It progresses through detailed conceptual explanations and practical exercises covering relativity, quantum theory, and nuclear physics. This course is designed for absolute beginners with no prior specialized knowledge of physics beyond high school basics. If you are curious about the mechanics governing the universe at its most fundamental level, this course is for you. Start reading today and unlock the fundamental secrets of modern physics.