## 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
4 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 = I1cos

^{2}55I2 = [0.5I] x 0.33

I2 = 0.164 I

So in percentage it is 16.4% of incident beam