Fundamentals of Modern Physics: Quantum and Relativity

Modern physics revolutionized our understanding of the universe, laying the groundwork for technologies from lasers to microprocessors. This course provides the essential theoretical foundation you need to grasp these monumental shifts in scientific thought. By the end of this course, you will have a clear, conceptual understanding of the two pillars of modern physics—relativity and quantum mechanics—and their application to atomic and nuclear structure. You will be prepared to explore advanced topics in fields like astrophysics and quantum computing. What you'll learn: * Understand the principles of Special Relativity, including time dilation and length contraction, and the concept of mass-energy equivalence. * Analyze the failures of classical physics, such as blackbody radiation and the photoelectric effect, that necessitated quantum theory. * Master the core concepts of quantum mechanics, including wave-particle duality, the uncertainty principle, and the Schrödinger equation. * Apply quantum theory to model the structure of the atom, focusing on the Bohr model and basic wave mechanics. * Learn the fundamentals of nuclear physics, including radioactivity, binding energy, and basic fission and fusion processes. * Explore how solid-state physics concepts, derived from quantum mechanics, enable modern semiconductor and electronic technology. The course begins with a review of the limitations of classical physics and moves systematically through special relativity, the development of quantum mechanics, atomic structure, and nuclear reactions. Concepts are reinforced through detailed written explanations and practice problems. This course is designed for absolute beginners with no prior knowledge of modern physics, though a basic understanding of classical mechanics is helpful. Start reading today and unlock the secrets of the modern physical world.