Unpolarized Light of Intensity I₀ Is Sent Through 4 Polarizers,each $^{\circ}$

question 32

Multiple Choice

Unpolarized light of intensity I₀ is sent through 4 polarizers,each of the last three rotated 30 $^{\circ}$ from the previous polarizer so that the last polarizer is perpendicular to the first.What is the intensity transmitted by this system?

• A) 0.75 I₀
• B) 0.50 I₀
• C) 0.42 I₀
• D) 0.21 I₀
• E) 0

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