本题目来源于试卷: Physics Unit27: Early Quantum Theory and Models of the Atom,类别为 国际高中通用物理
[单选题]
A beam of X-rays of fw- s95ea6ly; iklu -cmrequency f is incide 3sa lk9yg;; jrizn6fq8() jsvnt upon a substance that scatters the beam in various directions. If we measure the frequency of the scijavys)q3s(l;gz 8j6 k; rf9nattered 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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