Foundations of Light: Reflection and Refraction

Have you ever wondered how mirrors form images, why a straw looks bent in a glass of water, or how lenses correct vision? Understanding the fundamental behavior of light is the key to unlocking the physics of the visual world. This text-based course guides you through the core principles of geometrical optics. You will build a solid intuitive and mathematical understanding of how light behaves when it reflects off surfaces and refracts through different media, preparing you thoroughly for introductory physics exams and foundational science studies. What you'll learn: 1. Understand the fundamental properties of light, including straight-line propagation and basic wave concepts. 2. Analyze reflection using plane and spherical mirrors, including concave and convex mirror ray diagrams. 3. Apply the mirror formula and magnification equations to solve practical optics problems. 4. Master the laws of refraction, refractive index, and the phenomenon of total internal reflection. 5. Explore image formation by spherical lenses and apply the lens formula to determine image characteristics. 6. Examine modern applications of optics, including simple optical instruments and fiber optic technology. The course begins with foundational definitions of light and progresses systematically through reflection, refraction, and optical formulas, supported by step-by-step written explanations and worked examples. This course is designed for beginners, high school science students, and anyone preparing for foundational physics exams with no prior background in optics required. Start reading today to master the science of light and optics.