Author Question: A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 relative to ... (Read 90 times)

armygirl · **on:** Jul 28, 2018

A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 relative to the normal. If the index of refraction of water and glass are 1.33 and 1.5, respectively, at what angle (in degrees) does the light leave the glass (relative to its normal)?
a. 26
b. 35
c. 42
d. 22
e. 48

Question 2

A person in a boat sees a fish in the water (n = 1.33), the light rays making an angle of 40 relative to the water's surface. What is the true angle (in degrees) relative to the water's surface of the same rays when beneath the surface?
a. 40
b. 35
c. 50
d. 55
e. 61