• 2022-07-27
    若用衍射光准确测定一单色可见光的波长,在下列各种光栅常数的光栅中选用哪一种最好?
    A: [img=112x24]1803a1154306b83.png[/img]
    B: [img=112x24]1803a1154b802dd.png[/img]
    C: [img=112x24]1803a1155545909.png[/img]
    D: [img=112x24]1803a11562e8db4.png[/img]