Question #a1b5c
1 Answer
Sep 18, 2017
The speed of light in a vacuum is a constant and is
The speed of light decreases in a given medium.
Explanation:
The speed of light in a vacuum is constant because there are no atoms to absorb the electromagnetic radiation.
The speed of light decreases in a given medium such as air. For an example, the speed of light in air at sea level is
I hope that helps!