Answers

2014-07-31T17:53:49+08:00
The cause of the refraction of light is when it passes from a fast medium to a slow medium and then it bends the lights ray toward the normal to the boundary between the two media.
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2014-08-02T16:32:03+08:00
Because of the change of its speed resulting to change its direction due to its transmission medium.(enclosed is an example of refraction)
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