Question

speed of light in medium is 0.75times that of its speed of light in a vaccum absolutely refractive index of the medium is​

Answer 1

Explanation:

Speed of light in medium 1= 0.7*speed of light in vacuum

We know that, Absolute refractive index Speed of light in vacuum/speed

medium 1

= speed of light in

of light in

vacuum/ 0.7*speed of light

in vacuum

= 1/0.7 = 10/7 = 1.42