In Fig. 33-42, unpolarized light is sent into a system of three polarizing sheets. The

Chapter 33, Problem 38

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In Fig. 33-42, unpolarized light is sent into a system of three polarizing sheets. The angles u1, u2, and u3 of the polarizing directions are measured counterclockwise from the positive direction of the y axis (they are not drawn to scale). Angles u1 and u3 are fixed, but angle u2 can be varied. Figure 33-43 gives the intensity of the light emerging from sheet 3 as a function of u2. (The scale of the intensity axis is not indicated.) What percentage of the lights initial intensity is transmitted by the system when u2 30? yx 1 2 Figure 33-42 38, 40, and 44. I00 90 180 2Figure 33-43 38.