本题目来源于试卷: Single Slit，类别为 美国物理杯赛(Physics Bowl)
[单选题]
14.48: A laser beam with wavelengthlvbh,49 u4mhc)u h3ytfv(yu, 632.8 nm shines onto a newly fabricavuai)nx ts,hdk :+.a -i. yo8s(fxo /)hgewj /ted single slit. As a result, the width of the principal bright region on a viewing screen 1.25 m away is 1.00 m. Which one of the following best represents the sizisnjo t.kxhv8ha,y(g e/-of/wu +:.xd s ))ai e of the single slit opening?
A. 0.79$\mu$m
B. 0.85$\mu$m
C. 1.01$\mu$m
D. 1.58$\mu$m
E. 1.70$\mu$m
参考答案: E
本题详细解析:
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