問題詳情
54. A beam of unpolarized light of intensity I0 passes through four successive ideal polarizing filters,each of whose polarizing axis makes a 30° angle with the previous one. What is the intensity ofthe transmitted beam?
(A) 1
(B) 81/256
(C) 27/128
(D) 9/16
(E) 0
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增
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