Chapter 17 Reflection Homework: Read Section 1, pp. Reflection:

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Presentation transcript:

Chapter 17 Reflection Homework: Read Section 1, pp. Reflection: The rebounding of light waves when they are incident at the boundary of two media. Reflection may be “regular” or “diffuse”. Regular Diffuse

Mirrors: Usually a layer of glass coated with a thin layer of silver and a layer of opaque paint. To produce images, they must be very smooth (regular reflection) and have a high reflectance. Reflectance: The percentage of light reflected by a surface. A typical mirror reflects ~ 70-75% of the incident light. Optical mirrors (used in telescopes) reflect about 95% of the incident light. Types of Mirrors: Plane, Concave, and Convex

Plane Mirror Geometry:

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