Question

if the refractive index of water for light going from air to water be 1.33,what will be the refractive index for light going from water to air.
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Answer 1

Answer:

Refractive index is defined as the ratio of the speed of light in a vacuum to its speed in a specific medium.

Given parameter

The refractive index of water with respect to air (nwa) = 1.33

The refractive index of air with respect to water (nwa) = 1nwa

(nwa) = 1/1.33

(nwa) = 0.75