Unpolarized light of intensity Io=8.00 W/m2 enters a polarizer at
normal incidence. The output beam then passes through an analyzer whose
surface is parallel to the polarizer.
(a) What is the intensity of the light which emerges from the
polarizer?
Ipolarizer=Io/2=4.00 W/m2
(b) Is the light which emerges from the polarizer unpolarized or
polarized?
ANS: POLARIZED
(c) If the angle between the polarization directions of the polarizer
and analyzer is 30.0o, what is the intensity of the light which emerges
from the analyzer?
Ianalyzer
=
(4.00 W)cos2(30.0o)
=
3.00 W/m2
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