Refractive index of glass with respect to the medium is 4 3 . If the difference between velocities of light in medium and glass is 6.25 × 10 7 m s - 1 , then the velocity of light in medium is

Question

Refractive index of glass with respect to the medium is 4 3 . If the difference between velocities of light in medium and glass is 6.25 × 10 7 m s - 1 , then the velocity of light in medium is, 2.5 × 10 8 m s - 1, 0 .125 × 10 8 m s - 1, 1.5 × 10 8 m s - 1, 3 × 10 8 m s - 1

MARKS App · Accepted Answer

So, velocity of light in glass V g = V m μ V m - V g = V m - V m μ ∴ 6.25 × 10 7 = V m 1 - 1 4 3 V m = 6.25 × 10 7 × 4 = 2 .5 × 10 8 m s - 1

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