Question

Calculate the index of refraction for a medium in which the speed of light is 2.1x 108 m/s. The speed of light in vacuum is 3x108 m/s. Your answer should be a number with three decimal places, do not include the unit.

Answer 1

n = 1.42

Step-by-step explanation:

The refractive index for a medium is given by the ratio of the speed of light in vacuum to the speed of light in a medium.

`n=(c)/(v)\\\\n=(3* 10^8)/(2.1* 10^8)\\\\n = 1.42`

So, the refractive index of the medium is 1.42.