Question

what is the speed of light in a substance if the index of reflection is 1.31

Answer 1

The speed of light in vacuum c = 2.9972458 × 108 m/s ≈ 3.00 × 108 m/s. Index of refraction n=cv n = c v , where v is the speed of light in the material, c is the speed of light in vacuum, and n is the index of refraction. Snell's law, the law of refraction, is stated in equation form as n1 sin θ1 = n2 sinθ2.

Answer 2

Answer:

I think it is 300*10^8m/s