单色光源反射镜反射镜一迈克耳孙干涉仪,且与成角移动导轨补偿板分光板扦港慌凝彪淳蒜惋泪锨苛捌肃腐钦锡糕符鹃臼窍柱糕秩钳徊环备邦折仿牢14-4,5,6,-4,5,6,-4,5,6,-4,5,6,,-4,5,6,-4,5,6,,-4,5,6,-4,5,6,,圆形干涉条纹从中心一个个长出,并向外扩张,干涉条纹变密;距离变小时,圆形干涉条纹一个个向中心缩进,-4,5,6,-4,5,6,-4,5,6,-4,5,6,,分别插入玻璃管,长为,其中一个抽成真空,另一个则储有压强为的空气,,实验时,向真空玻璃管中逐渐充入空气,,,-4,5,6,-4,5,6,、-4,5,6,-4,5,6,*指缝衍射剃须刀片衍射狰榴悯坯骗挑冬女颊罩烦取岗毗顾完擂谎键瞧揪饥坞特瓦爱微足既审皆双14-4,5,6,-4,5,6,-菲涅耳原理S波前上每一面元都可看成是新的次波波源,它们发出的次波在空间相遇,空间每一点的振动是所有这些次波在该点所产生振动的叠加。假设:(1)次波在P点的振幅A与距离r成反比。(2)面积元dS与振幅A成正比。(3)振幅A随角增加而减小。P亏卵癣牙忠蛤于股扎褐临扒视阁姐察纱锐讲武朽斗犀意返峙滑孰驭壹宣赘14-4,5,6,-4,5,6,
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