26
Question Question 26
State whether light slows down or speeds up in the following cases:
(a) Light going from air to glass.
(b) Light going from glass to water.
(c) Light going from water to air.
(a) When light goes from air to glass, it slows down.
(b) When light goes from glass to water, it speeds up.
(c) When light goes from water to air, it speeds up.