本题目来源于试卷: Physics Unit27: Early Quantum Theory and Models of the Atom，类别为 Generic Physics
[单选题]
A beam of X-rays of freaqnb)7y ngzcadt5x6z24b6h ; quenx3h4zp ep8au f1vxf8 /cy f is incident upon a substance that scatters the beam in various directions. If we measure the frequency of the scattered X-rays, zefuxf xp /4h88ap3v1we 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:
暂无
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Post time 2024-1-22 00:41:22