Question

What is meant by the refractive index of a medium with respect to air?
no goo.gle please​

Answer 1

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Refractive index:- The ratio of sine of angle of incidence to the sine of angle of refraction.

n21 = $\frac{ \sin \: i }{ \sin \: r }$

Answer 2

Answer:

The refractive index of a medium with respect to air is defined as the ratio of the speed of light in the air to the speed of light in the medium.

Explanation:

Hope it helps!

Not Goog.led...