An ideal polarizer with its transmission axis rotated 30° to the vertical is placed in a beam of unpolarized light of intensity 10 W/m2. After passing through the polarizer, what is intensity of the beam?
A) 2.5 W/m2
B) 5.0 W/m2
C) 8.7 W/m2
D) 7.5 W/m2
E) 10 W/m2
B
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