What is the refractive index of the medium in which light enters from air and travels with the speed of 2x10^8 m/s?(given that the speed of the light in air is 3x10^8m/s.
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Answer:
Refractive index of medium(n) = velocity of light in air / velocity of light in medium
so n = 3×10^8/ 2×10^8
n = 3/2
n = 1.5
Hence the Refractive index of the medium is 1.5
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