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Effect of a polarizer/analyzer on partially polarized light
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[QUOTE="FranzDiCoccio, post: 6868387, member: 141434"] No, I do not agree. Or better, as I mentioned, I think that the problem does not make sense this way. If I can rotate the polarizer relative to the analyzer, I can get to the point where their axes are crossed. Nothing gets to the photocell in that situation, because whatever emerges from the polarizer is completely blocked by the analyzer. This means [itex] \bar S_{\min} =0[/itex]. Now whatever [itex] \bar S_{\max}[/itex] is, [itex] (\bar S_{\max}-\bar S_{\min})/(\bar S_{\max}+\bar S_{\min}) 100= 100[/itex]. But that's not really true, is it? The incident light is not 100% polarized. Of course. My observation was in response to the practical "value" of the situation portrayed in the problem. I think that the exercise makes sense only if [itex]\theta[/itex] is fixed, and this is interesting if at the practical level the only thing at my disposal to determine the percentage polarization is two films glued at an angle. However I do not really need a second polarizer to determine that. [/QUOTE]
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Effect of a polarizer/analyzer on partially polarized light
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