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Refractive Index

How is the re...

Question

How is the refractive index of a material related to the speed of light in it ?

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Solution

The refractive index of a material is the ratio of the speed of light in vacuum to the speed of light in the material.
Refractive index of a material = $fraction numerator s p e e d space o f space l i g h t space i n space v a c u u m over denominator s p e e d space o f space l i g h t space i n space t h e space m a t e r i a l end fraction$

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