Question

How does the refractive index of a transparent medium affect the speed of light passing through it?

Answer 1

1. The refraction index, $n$of a transparent medium, is defined as the ratio of the speed of light in the vacuum to the speed of light in that medium.
2. The formula is $n=\frac{c}{v}$
3. From the above formula, we can calculate the speed of light in that medium, it decreases as $v=\frac{c}{n}$ where, c=speed of light in a vacuum, n=refractive index of the medium
4. More the refractive index of a transparent medium, less the speed of light passing through it.