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 wavelength l is incident up0yz 7pex;buig 9izh(/n-4 ; tipcfbd -on a substance/mz2)a :uiba k)pa vx1 that scatters the beam in various directions. If we measure the wavelength of the scattered X-rays, we :x)zv2aumib/p1 a) kawill find
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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Post time 2024-1-22 00:41:22