Two polarizing sheets are placed together with their transmission axes at an angle of 68.0° to...
Two polarizing sheets are placed together with their transmission axes at an angle of 68.0° to each other. A third sheet is inserted between them with its transmission axis at an angle of 34.0° with respect to each of the other axes. Find the fraction of incident unpolarized light intensity transmitted by the three-sheet combination. (Assume each polarizing sheet is ideal.)
Homework Answers
Let I is the intensity of incident unpolarized light.
Intensity after passing through first polariser = I/2
Intensity after passing through second polariser
= (I/2)× cos234°
= 0.3436 I
Intensity after passing through third polariser
= (0.3436 I) × cos234°
= 0.236 I
Fraction of incident unpolarized light intensity transmitted by the three-sheet combination = 0.236
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