本题目来源于试卷: Physics Unit28: Quantum Mechanics of Atoms，类别为 通用国际物理
[单选题]
In a ruby laser, an electgbkuf ,94d 3 wvw+z(ypron jumpsu x:,ir5m)c6)ak7sjdysvy 3gq fr)l, from a higher energy level to a lower one. If the energy rj 5m,g:yrfcavs7 q l ,3ik)x dusy6))difference between the two levels is 1.8 eV, what is the wavelength of the emitted photon?
A. $469 \; nm$
B. $649 \; nm$
C. $694 \; nm$
D. $964 \; nm$
参考答案: C
本题详细解析:
暂无
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