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]
X-rays of wavelength 0.20 nm are scattered by a metal. The wavela65.m7f o,rieb2 7o se(yovbxength shift0nmug:z4a mleyp(d8ss2t r8( 1pn65znr rc+ t is obser4mte8 ay 1pcmptns(nrr+r5lzz:gd8 ( s6u n20ved to be
$2.1 \times 10^{-12} \; m$ at a certain scattering angle measured relative to the incoming X-ray. What is the scattering angle?
A. $20^{\circ}$
B. $40^{\circ}$
C. $60^{\circ}$
D. $80^{\circ}$
参考答案: D
本题详细解析:
暂无
| 
Post time 2024-1-22 00:41:22