refraction :
The process by which the direction of light changes as it passes obliquely from one medium to another in which its speed is different.
angle of refraction :
The angle between a refracted ray and a line perpendicular to the surface between the two media at the point of refraction.
Monday, October 13, 2008
Profound Thought Number 2
Life is a series of coincidences I make the best I can of.
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