• 2022-07-24
    某元素的特征光谱中含有波长分别为[img=11x19]1802e2f2a5374f4.png[/img]1=450 nm和[img=11x19]1802e2f2a5374f4.png[/img]2=750 nm ([img=111x22]1802e2f2b81cdec.png[/img])的光谱线.在光栅光谱中,这两种波长的谱线有重叠现象,重叠处[img=11x19]1802e2f2a5374f4.png[/img]2的谱线的级数将是
    A: 2,3,4,5......
    B: 2,5,8,11......
    C: 2,4,6,8......
    D: 3,6,9,12......
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