试题与答案

(9分)一列沿着X轴正方向传播的横波,在t=0时刻的波形如图甲所示。图甲中某质点

题型:计算题

题目:

(9分)一列沿着X轴正方向传播的横波,在t=0时刻的波形如图甲所示。图甲中某质点的振动图象如图乙所示。求:

①该波的波速。

②甲图中的质点L从图示位置到波峰的时间。

③写出t =0开始计时x="2m" 处的振动方程

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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