Light of original intensity I 0 passes through two ideal polarizing filters having their polarizing axes oriented vertical (first one) and at an angle " away from the vertical. You want to adjust the angle " so that the intensity beyond the second polarizer is I 0/10. What should the angle " be a) if the incident light is linearly polarized in the same direction as the polarizing axis of the first polarizer, and b) if the incident light is unpolarized? A third polarizer is inserted between the first two, with its polarizing axis at an angle "/2, between the orientations of the axes of the first two polarizers. What is the intensity beyond all three polarizers c) if the incident light is linearly polarized in the same direction as the polarizing axis of the first polarizer and the angle " is the same as in (a), and d) if the incident light is unpolarized and the angle " is the same as in (b)? 這題我沒概念怎麼解有人可以幫忙一下蟆? 是布魯斯特角那類嘛? --

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