Question

3 reflection and refraction how does the speed of light change as it enters water from the air? a. light speeds up when it enters water b. light slows down when it enters water c. the speed of light does not change d. none of the above

Explanation:

Light travels slower in denser mediums. Water is denser than air, so light's speed decreases when moving from air to water.

Answer:

B. Light slows down when it enters water