As Shown in the Figure, the Orientation of the Transmission $1.00 \mathrm {~kW} / \mathrm { m } ^ { 2 }$

question 66

Multiple Choice

As shown in the figure, the orientation of the transmission axis for each of three ideal polarizing sheets is labeled relative to the vertical direction. A beam of light, polarized in the vertical direction, is incident on the first polarizer with an intensity of $1.00 \mathrm {~kW} / \mathrm { m } ^ { 2 }$ . What is the intensity of the beam after it has passed through the three polarizing sheets when $\theta _ { 1 } = 30 ^ { \circ } , \theta _ { 2 } = 30 ^ { \circ }$ , and $\theta _ { 3 } =$ $60 ^ { \circ }$ ?

• A) \(433 \mathrm {~W} / \mathrm { m } ^ { 2 }\)
• B) \(141 \mathrm {~W} / \mathrm { m } ^ { 2 }\)
• C) \(316 \mathrm {~W} / \mathrm { m } ^ { 2 }\)
• D) \(563 \mathrm {~W} / \mathrm { m } ^ { 2 }\)
• E) \(188 \mathrm {~W} / \mathrm { m } ^ { 2 }\)

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