• 2022-07-02
    如图所示,两光源S1、S2发出波长为λ的单色光,分别通过两种介质(折射率分别为n1和n2,且n1>;n2)射到介质的分界面上的P点。己知S1P=S2P=r,则这两条光的几何路程差Dr,光程差D和相位差Dj分别为( )。[img=284x187]17e0b74962d8951.png[/img]
    A: Dr =0,D =0,Dj = 0
    B: Dr=(n1-n2)r,D =(n1-n2) r,Dj =2p (n1-n2)r/l
    C: Dr =0,D =(n1-n2)r,Dj =2p (n1-n2)r/l
    D: Dr =0,D =(n1-n2) r,Dj =2p (n1-n2)r
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