本题目来源于试卷: Physics Unit27: Early Quantum Theory and Models of the Atom,类别为 通用国际物理
[单选题]
A beam of X-rays of freque;qd fc+,09:t8s/mlx we phucsncy f i;uke 3 str+52jd;r7/hvcyr zns incident upon a substance that scatters the beam in various direcz;se +h3drt v;2k7nrc5ju/yr tions. If we measure the frequency of the scattered X-rays, we will find
A. X-rays with frequency less than f.
B. X-rays with frequency greater than f.
C. only X-rays with frequency f.
D. X-rays with frequencies ranging from less than f to greater than f.
参考答案: A
本题详细解析:
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