Question

Light is travelling at a speed of `2.29*10^8` `m`/`s` through ice. What is the index of refraction of ice?

Answer 1

`1.31`

Explanation:

We know that
Refractive index of a medium `n` `=("Velocity of light in Vacuum "c)/("Velocity of light in medium")`
Inserting given value and taking `c=3xx10^8ms^-1`, we get

Refractive index of ice `n=(3xx10^8)/(2.29xx10^8)`

`=>n=1.31`