Chapter 29:Reflection and Refraction
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15 terms
Terms | Definitions |
|---|---|
 reflection | the return of a wave back into its original medium |
| normal | a line perpendicular to a surface |
| angle of incidence | the angle b/t the incidence ray and the normal |
| angle of reflection | angle b/t the reflected ray and the normal |
| Law of Reflections | states that the angle of incidence and the angle of reflection are equal |
| virtual image | an image that appears to be in a location where light doesn't really reach |
| diffuse reflection | the reflection of light from a rough surface |
| reverberations | multiple reflections of sound |
| refraction | the bending of a wave that crosses the boundary of two media at an angle |
| wave fronts | the drawings that represent the positions of different crests |
| mirage | an appearance of a distorted image that is caused by refraction of light in the earth's atmosphere |
| dispersion | the separation of light into colors arranged by frequency |
| critical angle | the angle of incidence that results in the light being refracted at an angle of 90* w/respect to the normal |
| total internal reflection | the complete reflection of light into its original medium |
| optical fibers | transparent fibers that pipe light from one place to another known as light pipes |
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