在双缝衍射实验中,若保持双缝S1和S2的中心之间的距离d不变,而把两条缝的宽度a略为加宽,则()A、单缝衍射的中央主极大变宽,其中所包含的干涉条纹数目变少B、单缝衍射的中央主极大变宽,其中所包含的干涉条纹数目变多C、单缝衍射的中央主极大变宽,其中所包含的干涉条纹数目不变D、单缝衍射的中央主极大变窄,其中所包含的干涉条纹数目变少

在双缝衍射实验中,若保持双缝S1和S2的中心之间的距离d不变,而把两条缝的宽度a略为加宽,则()

  • A、单缝衍射的中央主极大变宽,其中所包含的干涉条纹数目变少
  • B、单缝衍射的中央主极大变宽,其中所包含的干涉条纹数目变多
  • C、单缝衍射的中央主极大变宽,其中所包含的干涉条纹数目不变
  • D、单缝衍射的中央主极大变窄,其中所包含的干涉条纹数目变少

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