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 wavelength l is incidentjdh q iclx3zy63f8+)m u/9 * gq:9rejffwn(upg pon a substance that scatters the beam in various directions. If we measure the wavelength of the scattered X-rays, we will fw9jp ng( ur:fef gq*9/ind
A. X-rays with wavelength less than l.
B. X-rays with wavelength greater than l.
C. only X-rays with wavelength l.
D. X-rays which range in wavelength from less than l to greater than l.
参考答案: B
本题详细解析:
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