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superslow991
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Homework Statement
Unpolarized light of intensity Io passed through a Polaroid sheet with its polarizing axis at the 12 o'clock position and then through a second with its polarizing axis at the 1 o'clock position. What is the intensity of the emerging light?
Homework Equations
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I= I0 *0.5*cos2(30)
The Attempt at a Solution
Now i know the solution i just want a break down of the question. Why is it that when a unpolarized light passed through a polaroid, it loses 1/2 its intensity?
Also where would the 30 degrees come from? Also is it possible to draw this question out?