Question

If the speed of light in a medium is 0.75
x
${10}^{8}$
m/s .what is the absolute refractive index
of the medium​

Answer 1

Explanation:

Absolute refractive index of a medium

Speed of light in air

ú = Speed of light in the medium

3 * 10⁸ 3

0 ú = 0.75*10⁸ = 0.75 = 4