An Underwater Scuba Diver Sees the Sun at an Apparent $\degree$

Multiple Choice

An underwater scuba diver sees the sun at an apparent angle of 30.0 $\degree$ from the vertical.How far is the sun above the horizon? (n_water = 1.333)

A) 22.0 $\degree$
B) 41.8 $\degree$
C) 48.2 $\degree$
D) 68.0 $\degree$