An underwater diver sees the sun 60 ? above horizontal.

A) How high is the sun above the horizon to a fisherman in a boat above the diver?

Express your answer using two significant figures.

if the diver sees the sun at 60 degrees then that means that the refracted ray is 30 degrees
n1sinx1=n2sinx2

where n1 and n2 are refractive index of water and air respectively
1.333sin30 = 1sinx2
x2=41.8 degrees, this is the angle of the incident ray
the person above the water sees the sun at
90 - 41.8 = 48.2 degrees.
the 41.8 degrees is made normal with the surface, so for horizontal to the surface subtract that from 90.