Q. 44.4( 5 Votes )

Light enters from air into a glass plate having refractive index 1.5. What is the speed of light in glass? (Speed of light in vacuum is 3 × 108 ms-1)

Answer :

Given that –

Refractive index of glass =1.5


Speed of light in vacuum = 3 × 108 ms-1


As we know



So


Speed of light in glass =2×108m/s


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