Author Question: At night an underwater scuba diver aims a flashlight beam toward the surface at 15 to the normal. ... (Read 77 times)

dalyningkenk · **on:** Jul 29, 2018

At night an underwater scuba diver aims a flashlight beam toward the surface at 15 to the normal. Upon emerging into the air, the beam angle will be

A) less than 15.
B) 15.
C) more than 15.
D) impossible to predict.

Question 2

If a fish looks upward at 45 to a pond's water's surface, it will see

A) the pond's bottom.
B) the sky and possibly some tall surroundings.
C) only the water's surface.
D) none of the above