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re·frac·tion
[ri-frak-shuhn]
NOUN
1.
Physics. the change of direction of a ray of light, sound, heat, or the like, in passing obliquely from one medium into another in which its wave velocity is different.
Source: Dictionary.com
refraction | Define refraction at Dictionary.com
dictionary.reference.com/browse/refraction
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en.wikipedia.org/wiki/Refraction

Refraction is the change in direction of wave propagation due to a change in its transmission medium. The phenomenon is explained by the conservation of ...

hyperphysics.phy-astr.gsu.edu/hbase/geoopt/refr.html

Refraction is the bending of a wave when it enters a medium where its speed is different. The refraction of light when it passes from a fast medium to a slow ...

www.britannica.com/science/refraction

Refraction, in physics, the change in direction of a wave passing from one medium to another caused by its change in speed. For example, waves in deep water ...

www.dictionary.com/browse/refraction

Refraction definition, Physics. the change of direction of a ray of light, sound, heat , or the like, in passing obliquely from one medium into another in which its ...

www.physicsclassroom.com/class/refrn/Lesson-2/The-Angle-of-Refraction

Refraction is the bending of the path of a light wave as it passes across the boundary separating two media. Refraction is caused by the change in speed ...

www.physicsclassroom.com/class/refrn/Lesson-1/The-Cause-of-Refraction

We have learned that refraction occurs as light passes across the boundary between two media. Refraction is merely one of several possible boundary ...

www.sciencelearn.org.nz/resources/49-refraction-of-light

Apr 26, 2012 ... Refraction is the bending of light (it also happens with sound, water and other waves) as it passes from one transparent substance into another.

www.brainpop.com/games/refraction

In this free online math game, students explore various concepts related to fractions as they reflect light in space.