what is refractive index

Asked by APOORVA RAMKI | 17th Mar, 2012, 07:38: PM

Expert Answer:

Refractive index of a medium is defined as the ratio of speed of light in vacuum to the speed of light in the medium. A medium with higher value of refractive index is said to be optically denser compared to a medium with lower value of refractive index.

Answered by  | 17th Mar, 2012, 11:12: PM

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