Physics Unit24: Wave Nature of Light (id: 24210acff)

本题目来源于试卷: Physics Unit24: Wave Nature of Light，类别为 通用国际物理

[单选题]
A polarizer (with its5r5u 9s;pmu hy)kc:tj *cl9 mwrbdyjfb+*0/s preferred direction rotated $30^{\circ}$ to the vertical) is placed in a beam of unpolarized light of intensity 1. After passing through the polarizer, the beam's intensity is

A. 0.25.
B. 0.50.
C. 0.87.
D. 0.75.


参考答案:  B


本题详细解析: 暂无

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