Consider the two polarization experiments shown in FIGURE 25-42.

In figure 25-42

(a) If the incident light is unpolarized, is the transmitted intensity in case A greater than, less than, or the same as the transmitted intensity in case B?
(b) Choose the best explanation from among the following:
I. The transmitted intensity is the same in either case; the first polarizer lets through one-half the incident intensity, and the second polarizer is at an angle u relative to the first.
II. Case A has a smaller transmitted intensity than case B because the first polarizer is at an angle u relative to the incident beam.
III. Case B has a smaller transmitted intensity than case A because the direction of polarization is rotated by an angle θ in the clockwise direction in case B.

00 Incident light A Transmitted light Incident light Transmitted light