Physics, asked by Abhishrk2203, 1 year ago

Why is the refractive index of medium and always greater than one?

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Answered by Anonymous

Because refractive index(n) is nothing but the ratio of speed of light in vacuum(c) to the speed of light in thatmedium(v). n = c/v ; c is always greater than v . So numerator is always greater than denominator that's why n is always greater and equal to 1.

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