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A beam of initially unpolarized light passes through a sequence of three ideal polarizers. The angle...

A beam of initially unpolarized light passes through a sequence of three ideal polarizers. The angle ?12 between the axes of the first and second polarizers is 21.5∘, and the angle ?23 between the axes of the second and third polarizers is 53.3∘.

What is the ratio of the intensity ?3I3 of light emerging from the third polarizer to the intensity ?0I0 of light incident on the first polarizer?

?3/?0=

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