A scuba diver in a lake aims her underwater spotlight at the lake surface.
(a) If the beam makes a 78° angle of incidence with respect to a normal to the water surface, is it reflected, transmitted, or both?
Find the angles of the reflected and transmitted beams (if they exist, enter 0 if they do not exist)
(b) If the beam makes a 34° angle of incidence with respect to a normal to the water surface, is it reflected, transmitted, or both?
Find the angles of the reflected and transmitted beams (if they exist, enter 0 if they do not exist).
Answer:
