Chapt23_VG - Chapter 23 Ray Optics Chapter 23. Ray Optics...

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Chapter 23 Ray Optics
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Topics: The Ray Model of Light Reflection Refraction Image Formation by Refraction Color and Dispersion Thin Lenses: Ray Tracing Thin Lenses: Refraction Theory Image Formation with Spherical Mirrors Chapter 23. Ray Optics Chapter 23. Ray Optics
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Motion of crests Direction of power flow When can one consider waves to be like particles following a trajectory? Wave crests Wave model: study solution of Maxwell equations. Most complete classical description. Called physical optics. Ray model: approximate propagation of light as that of particles following specific paths or “rays”. Called geometric optics. Quantum optics: Light actually comes in chunks called photons
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Wave Picture vs Ray Picture
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In the Ray Picture a beam of light is a bundle of parallel traveling rays
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Pin hole camera (No lens) Source sends out rays in all directions
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A long, thin light bulb illuminates a vertical aperture. Which pattern of light do you see on a viewing screen behind the aperture?
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Specular Reflection - reflection from a smooth surface
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This note was uploaded on 12/27/2011 for the course PHYSICS 270 taught by Professor Drake during the Fall '08 term at Maryland.

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Chapt23_VG - Chapter 23 Ray Optics Chapter 23. Ray Optics...

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