Mon September 17, 2012 By:

Speed of light in water is 2.25 * 10^8 ms^-1 and speed of light in glass is 2 * 10^8 ms^-1. Which is the denser medium?

Expert Reply
Tue September 18, 2012
the speed of light in a medium is inversely proportional to the refractive index of the medium
thus glass has a higher refractive index.
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