Unpolarized light passes through three polarizers. The second makes an angle of 25∘ ∘ relative to the first, and the third makes an angle of 45∘ ∘ relative to the first. The intensity of light measured after the third polarizer is 35 W/m2 W / m 2 .
Determine the intensity of the unpolarized light incident on the first polarizer.
Express your answer with the appropriate units.
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