A Student Standing on the Edge of a Swimming Pool

Multiple Choice

A student standing on the edge of a swimming pool sees a painted mark on the bottom of the pool. The mark appears to be at a shallower depth than the actual depth of the pool.Which of the following descriptions of light waves best explains this observation?

A) Light from the mark travels through the water in a curved path.
B) Light from the mark is refracted as it travels from the water to the air.
C) Light from the mark is reflected as it travels from the water to the air.
D) Light from the mark bounces off the boundary between the water and the air.