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Geometrical Optics is a cornerstone of physics, but applying the formulas to real-world scenarios can be challenging without a strong theoretical foundation. This course provides that foundation, focusing entirely on reading and understanding the core concepts and methodologies. By the end of this course, you will possess a robust understanding of how light behaves when interacting with mirrors, lenses, and prisms, allowing you to approach complex quantitative problems with clarity and confidence. What you'll learn: * Understand the fundamental principles of light propagation, reflection, and the laws of refraction (Snell's Law). * Apply the formulas for spherical mirrors and thin lenses to determine image characteristics and magnification. * Master the concepts of total internal reflection (TIR), critical angle, and how light interacts with prisms. * Analyze the basic working principles of common optical instruments, including the simple microscope and telescope. * Practice systematic ray tracing techniques and quantitative problem-solving methodologies for complex lens and mirror systems. The course begins with foundational definitions and the laws of light, systematically progressing through mirrors, refraction, lenses, and optical instruments, reinforcing theory with practical exercises throughout. This course is designed for absolute beginners interested in physics or preparing for technical studies. No prior knowledge of optics is required. Build your essential physics knowledge base starting now.