Question

Light enters from air into glass plate which has a refractive index of 1.5. calculate the speed of light in glass. (Give, speed of light in vacuum in 3x108 ms.​


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Answer 1

Answer:

refractive index(u) = c/v

1.5 = 3*10^8/v

v= 3*10^8/1.5

v= 2*10^8m/s