A beam of unpolarized light of intensity i0 passes through, Ask an Expert

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A beam of unpolarized light of intensity I₀ passes through a series of ideal polarizing filters with their polarizing directions turned to various angles as shown in the figure (Figure) .

435_A beam of unpolarized light of intensity.jpg

Part A

What is the light intensity (in terms of I0) at points A, B, and C?

Part B

If we remove the middle filter, what will be the light intensity at point C?

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