Question

which factors decided the speed of the light in medium

Answer 1

Answer:

Sound travels more slowly than light, and it does not always travel at the same speed. Two main factors affect the speed of sound: the material that makes up the medium—such as air or water—and the temperature. If we know the medium and the temperature, however, we can predict the speed of sound.

Answer 2

Answer: THE REFRACTIVE INDEX

Explanation: The Refractive Index can be seen as the factor by which the SPEED and wavelength of the radiation are reduced.

The speed of light in the medium is v=c/n.