Question

diamond 2.42 is refractive index
ruby 1.71 is refractive index
in diamond and ruby in which media the speed light is less.
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Answer 1

Answer:

The speed of light will be less in diamonds.

Explanation:

Refractive is defined as the ratio of the velocity of light in a vacuum to that in a particular medium.

Refractive index = velocity of light in a vacuum ÷ velocity of light in a medium

So higher the value of the refractive index lower will be the speed of light and vice versa.

The refractive index of the diamond (2.42) is greater than that of the ruby (1.71). That means the speed of light in diamond is less than in the ruby.