Two polarizing plates are placed so that one is in front of the other. A light source is placed behind the plates. If in the initial position, all of the light passing through the first also passed through the second plate, what angles of rotation will none of the light pass?
A.
B.
C.
D.
B
If the two polarizing plates are aligned, all of the light passing through the first also passes through the second plate. When one plate is rotated 90¬° or 270¬°, no light from the first plate passes through the second.
