問題詳情
20.單狹縫繞射實驗，單狹縫與屏相距 100cm，以 6000Å 的單色光照射寬度為 cm 單狹縫時，則：
(A)中央亮帶寬度為 0.30cm
(B)屏上第二暗紋至狹縫兩邊緣之光程差為波長的2 倍
(C)中央亮帶一側第一亮紋中點至第三暗紋距離為 0.75cm
(D)中央亮帶中線左側第二暗紋至右側第三亮紋中點的距離為 1.65cm
(E)中央亮帶對狹縫中心的張角ψ約為6x10-3rad 。
(A)中央亮帶寬度為 0.30cm
(B)屏上第二暗紋至狹縫兩邊緣之光程差為波長的2 倍
(C)中央亮帶一側第一亮紋中點至第三暗紋距離為 0.75cm
(D)中央亮帶中線左側第二暗紋至右側第三亮紋中點的距離為 1.65cm
(E)中央亮帶對狹縫中心的張角ψ約為6x10-3rad 。
參考答案
答案：B,D,E
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)
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