Question

The refractive index of glass is 1.5 . What is the speed of light in glass ? (speed of light in vacuum is 3×108m/s)

Answer 1

refractive index=1.5
speed of light in vaccum=3×10^8m/s
speed of light={3×10^8}/1.5 m/s
=2×10^8 m/s
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Answer 2

Explanation:

refractive index=1.5

speed of light in vaccum=3×10^8m/s

speed of light={3×10^8}/1.5 m/s

=2×10^8 m/s

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