• 2022-06-04
    波长为l的单色光垂直照射如图所示的透明薄膜。膜厚度为e,两束反射光的光程差d =____________________。[img=192x101]1803d3034a46da4.png[/img]
    A: 2.60e
    B: 3.0e
    C: [img=73x44]1803d303526453b.png[/img]
    D: [img=64x44]1803d3035b5f22e.png[/img]