Chap28_Reflection_Refraction

Chap28_Reflection_Refraction - Chapter 28 Reflection &...

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Chapter 28 Reflection & Refraction
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Specular and Diffuse Reflection Reflection from most surfaces is diffuse, with incoming light scattered in all directions. Reflection from mirror surfaces is specular, with light reflecting in one direction. Mirror Diffuse reflection Specular reflection
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Check What objects in this room radiate light? Is the projector screen radiating visible light? Is the screen a diffuse or specular reflector?
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One Way Mirror One way mirror is just clear glass window. Bright Room Dark Room Discussion Room (Bright) Observation Room (Dark) GLASS Reflected light from bright room masks transmitted light from the darkened observation room
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Law of Reflection Angle of incidence equals angle of reflection SPECULAR REFLECTION
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Ray Tracing Light ray from point A is reflected at point B and arrives at point B. Notice the relationship between point B (where the ray is reflected to) and point B’ (where the ray would go if the mirror wasn’t there).
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Mirror Image Reflection To observer at point B, the light from point A seems to come from point A’, within mirror.
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Chap28_Reflection_Refraction - Chapter 28 Reflection &...

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