light traveling horizontally proceeds through two polarizing sheets.
Question
Unpolarized light enters the first sheet which has it’s transmission axis oriented vertically. The transmitted light falls on a second sheet which has its transmission axis set at 55 degrees with respect to the first sheet. What percentage of the incident beam emerges from the second sheet?
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General Physics
7 years
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Answer ( 1 )
Since it is unpolarized so from first sheet Incident beam gets half of initial value
I1 =I/2
From second sheet
I2 = I1cos255
I2 = [0.5I] x 0.33
I2 = 0.164 I
So in percentage it is 16.4% of incident beam