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Exploring Geometric Optics in Physics: Curved Mirrors, Lens Magnification, and Snell's Law

Dive into the world of geometric optics which focuses on the principles of light reflection and refraction using geometric laws. Learn how curved mirrors can act as lenses to create magnified images based on their focal length and how ray diagrams are used to identify image locations efficiently. Understand the relationships between image distance, magnification, object distance, and lens focal length. Explore Snell's law which governs the angles in refraction and how it relates to the speed of light. Discover how transparent lenses follow geometric formulas with different sign conventions and the influence of dispersion in transparent materials leading to phenomena like prisms and rainbows. Delve into double refraction and the complexities of polarization in optics.

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Exploring Geometric Optics in Physics: Curved Mirrors, Lens Magnification, and Snell's Law

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Presentation Transcript

  1. Geometric Optics Physics 202 Lecture 9

  2. Geometric optics ignores the wave nature of light and is based on geometric laws

  3. A curved mirror will act as a lens creating a magnified image based on its focal length

  4. In a ray diagram, we only need a few key rays to identify the image location

  5. Image distance and magnification is related to object distance and lens focal length

  6. Snell’s law governs the angles involved in refraction and is related to the speed of light

  7. Transparent lenses obey same geometric formulas with a different sign convention

  8. Most transparent materials are dispersive which explains prisms and rainbows

  9. Double refraction and the problem of polarization

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