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  • (cur | prev) 09:06, April 21, 2007Dr Joe Kiff (Talk | contribs)‎ . . (13,572 bytes) (+13,572)‎ . . (New page: {{ExpPsy}} The '''refractive index''' (or '''index of refraction''') of a medium is a measure for how much the speed of light (or other waves such as sound waves) is reduced inside the...)

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