• 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]180395f1b5d3e0c.png[/img]
    B: [img=112x24]180395f1bdfe01f.png[/img]
    C: [img=112x24]180395f1c654016.png[/img]
    D: [img=112x24]180395f1cf7ab3b.png[/img]