Question

The speed of light in a medium of refractive index 'n' is --------- , where 'c' is the speed of light in vaccum​

Answer 1

Answer:

"n = c / v" "c" is the speed of light in a vacuum, "v" is the speed of light in that substance and "n" is the index of refraction. According to the formula, the index of refraction is the relation between the speed of light in a vacuum and the speed of light in a substance

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Answer 2

Answer:

c/n

Explanation:

c=speed of light in vaccum

n=speed of light in medium of refractive index

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