A
beam of linearly polarized light strikes two polarizing sheets.
The characteristic direction of the second is
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Solution: Click For PDF Version Let the intensity of the linearly polarized incident beam be .
It is given that the characteristic direction of the first is at
angle
with respect to the incident light. By the law of Malus the
intensity of the beam after it has passed through the first
polarizing sheet will change to
The
characteristic direction of the second polarizing sheet with respect
to the first sheet will be
It is given that
Therefore,
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with respect to the incident light.
The characteristic direction of the first is
at angle
.
,
as the characteristic direction of the second is
