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【毎日一問】理論基礎 2020.06.10

2020-06-10View Original

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選択問題:ある光は自然光と偏光の混合光であり、これを偏光板に通す。この入射光束を軸にして偏光板を回転させたとき、透過光の強度の最大値が最小値の5倍になるとする。このとき、入射光束中の自然光と偏光の強度比はどれか? ( ) (A)1/2 (B)1/5 (C)1/3 (D) 2 正解:A ヒント:解法の過程を説明できた人には追加の報酬があります。正解は返信で確認できます!
Reply #22020-06-10
A。自然光が偏光子を通過すると光強度はI=I0/2となり、偏光光が偏光子を通過するときの光強度はマリウスの法則に従い、Imax=IP+I0/2、Imin=I0/2、Imax/Imin=5、I0/IP=1/2となる。

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