Physics Unit27: Early Quantum Theory and Models of the Atom (id: bbe814c13)

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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]
The wavelength of a ru9.i 60 sm0cn-gc4jfwfmird+uby laser is 694.3 nm. Whs0wl3yf7jy z; +/ct ziat is the energy difference between the two e+fz/;yj03l iyzsw7 ctnergy states involved in laser action?

A. $1.537 \; eV$
B. $1.646 \; eV$
C. $1.786 \; eV$
D. $1.812 \; eV$


参考答案:  C


本题详细解析: 暂无