Light Passes Through Three Ideal Polarizing Sheets $50 ^ { \circ }$

question 11

Short Answer

Light passes through three ideal polarizing sheets. Unpolarized light enters the first sheet and the resultant vertically polarized beam continues through the second sheet and third sheet. The second sheet has its transmission axis at $50 ^ { \circ }$ with respect to the first sheet, and the third sheet is at $70 ^ { \circ }$ with respect to the first sheet.
(a) What percent of the original intensity emerges from filter #1?
(b) What percent of the original intensity emerges from filter #2?
(c) What percent of the original intensity emerges from filter #3?

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