如图波源S1在绳的左端发出频率为f1、振幅为A1的半个波形a，同时另一个波源S2

发布时间：2017-04-25 03:10 │ 来源：www.tikuol.com

题型：选择题

问题：

如图波源S₁在绳的左端发出频率为f₁、振幅为A₁的半个波形a，同时另一个波源S₂在绳的右端发出频率为f₂、振幅为A₂的半个波形b，（f₁＜f₂），P为两个波源连线的中点．下列说法中正确的是（　　）

A．两列波将同时到达P点

B．两列波在P点叠加时P点的位移最大可达A₁+A₂

C．a的波峰到达S₂时，b的波峰也恰好到达S₁

D．两列波相遇时，绳上位移可达A₁+A₂的点只有一个，此点在P点的左侧

考点：横波与纵波波长、频率和波速

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