Question

What happens to the speed of light as it goes from a lower density medium to a higher density medium

Answer 1

When light moves from a lower density medium to a higher density medium, its speed decreases due to refraction.

Step-by-step explanation:

When light travels from a lower density medium to a higher density medium, its speed decreases.

This phenomenon is known as refraction and can be observed when light passes from air to water or from air to glass.

For example, when light enters water, it slows down and changes direction, causing a change in the angle of incidence.

Learn more about Refraction of light