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Gaokao Physics Practice Question

氦氖激光器能产生三种波长的激光, 其中两种波长分别为 $\lambda_{1}=0.6328 \mu \mathrm{m}, \lambda_{2}=3.39 \mu \mathrm{m}$, 已知波长为 $\lambda_{1}$ 的激光是氖原子在能级间隔为 $\triangle \mathrm{E}_{1}=1.96 \mathrm{eV}$ 的两个能级之间跃迁产生的. 用 $\triangle \mathrm{E}_{2}$ 表示产生波长为 $\lambda_{2}$ 的激光 所对应的跃迁的能级间隔, 则 $\triangle \mathrm{E}_{2}$ 的近似值为

  1. A.$10.50 \mathrm{eV}$
  2. B.$0.98 \mathrm{eV}$
  3. C.$0.53 \mathrm{eV}$
  4. D.$0.36 \mathrm{eV}$

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