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In Figure (a) below, unpolarized light is sent into a system of three polarizing sheets. The angles θ1, θ2, and θ3 of the polarizing directions are measured counterclockwise from the positive direction of the y axis (they are not drawn to scale). Angles θ1 and θ3 are fixed, but angle θ2 can be varied. Figure (b) gives the intensity of the light emerging from sheet 3 as a function of θ2. (The scale of the intensity axis is not indicated. ) What percentage of the light's initial intensity is transmitted by the three-sheet system when θ2 = 90∘? (a) (b)

In Figure (a) below, unpolarized light is sent into a system of three polarizing sheets. The angles θ1, θ2, and θ3 of the polarizing directions are measured counterclockwise from the positive direction of the y axis (they are not drawn to scale). Angles θ1 and θ3 are fixed, but angle θ2 can be varied. Figure (b) gives the intensity of the light emerging from sheet 3 as a function of θ2. (The scale of the intensity axis is not indicated. ) What percentage of the light's initial intensity is transmitted by the three-sheet system when θ2 = 90∘? (a) (b)

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In Figure (a) below, unpolarized light is sent into a system of three polarizing sheets. The angles θ 1 , θ 2 , and θ 3 of the polarizing directions are measured counterclockwise from the positive direction of the y axis (they are not drawn to scale). Angles θ 1 and θ 3 are fixed, but angle θ 2 can be varied. Figure (b) gives the intensity of the light emerging from sheet 3 as a function of θ 2 . (The scale of the intensity axis is not indicated.) What percentage of the light's initial intensity is transmitted by the three-sheet system when θ 2 = 90 ∘ ? (a) (b)

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