Two polaroids are oriented with their planes perpendicular to incident light and transmission axis making an angle of 30^@with each other. What fraction of incident unpolarized light is transmitted?

Two polaroids are oriented with their planes perpendicular to incident

1.	Two polaroids are oriented with their planes perpendicular to incident light and transmission axis making an angle of 30^@with each other. What fraction of incident unpolarized light is transmitted?
Answer» Solution :If UNPOLARIZED light is passed through a polaroid `P_1` . its intensity will become half. `So I_1 = 1/2 I_0`,with VIBRATIONS parallel to the axis of `P_1` . Now this light will PASS through the second polaroid `P_2`(Analyser) whose axis is INCLINED at an angle of `30^@`to the axis of `P_1`and hence to the vibrations of `I_1`

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Two polaroids are oriented with their planes perpendicular to incident light and transmission axis making an angle of 30^@with each other. What fraction of incident unpolarized light is transmitted?

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