Difference between revisions of "Refraction"
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(Refraction produces rainbows and a similar effect in a prism. It is also the principle used in eyeglasses and the refracting telescope.) |
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| − | '''Refraction''' is the change in direction of [[light]] when moving from one medium to another. Refraction produces [[rainbow]]s and a similar effect in a [[prism]]. It is also the principle used in [[eyeglasses]] and the refracting [[telescope]]. | + | '''Refraction''' is the change in direction of [[light]] when moving from one medium to another. Refraction produces [[rainbow]]s and a similar effect in a [[prism]]. It is also the principle used in [[eyeglasses]] and the refracting [[telescope]]. The degree to which a medium refracts light is expressed as that medium's [[index of refraction]]. |
| − | The | + | The amount that the direction changes when moving between the two media is determined by [[Snell's Law]]. |
[[category:physics]] | [[category:physics]] | ||
Revision as of 00:39, September 25, 2009
Refraction is the change in direction of light when moving from one medium to another. Refraction produces rainbows and a similar effect in a prism. It is also the principle used in eyeglasses and the refracting telescope. The degree to which a medium refracts light is expressed as that medium's index of refraction.
The amount that the direction changes when moving between the two media is determined by Snell's Law.
