Solution: In Fig. 33-42, unpolarized light is sent into a
Chapter 33, Problem 40(choose chapter or problem)
In Fig. 33-42, unpolarized light is sent into a system of three polarizing sheets. The angles 81, 82, and 83 of the polarizing directions are measured counterclockwise from the positive direction of the y axis (they are not drawn to scale). Angles 81 and 83 are fixed, but angle 82 can be varied. Figure 33- 44 gives the intensity of the light emerging from sheet 3 as a function of 82, (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 82 = 90?
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