Question

the refractive index of glass is 1.5. find the velocity of light in glass

Answer 1

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Answer 2

Refractive index= velocity of light in air/ velocity of light in glass or any other media

So, ri= 3*10^8/velocity of light in glass

1.5=3*10^8/velocity of light on glass

Hence, velocity= 2*10^8 m/s