A、B两波相向而行,在某时刻的波形与位置如下图所示.已知波的传播

A、B两波相向而行,在某时刻的波形与位置如下图所示.已知波的传播速度为v,图中标尺每格长度为l,在图中画出又经过t=7l/v时的波形.

答案

解析:根据波的叠加原理可得.

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