An Ideal Polarizer Is Placed in a Beam of Unpolarized

Multiple Choice

An ideal polarizer is placed in a beam of unpolarized light and the intensity of the transmitted light is 1.000. A second ideal polarizer is placed in the beam with its referred direction rotated 40° to that of the first polarizer. What is the intensity of the beam after it has passed through both polarizers?

A) 0.6431
B) 0.5868
C) 0.5000
D) 0.4131
E) 0.7661