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《物理教学》1992年12期26页刊登这样一道题:一列横波沿一直线在空间传播,在某一时刻直线上相距为 s 的 A、B 两点均处在平衡位置,且 A、B 之间只有一个波峰,若经过时间 t,B 恰好到达波峰位置。则该列波可能的波速是哪些?题后给出的参考答案是:s/2t,3s/2t,s/4t,3s/4t,s/6t.这道题是机械波习题中一类较有代表性的题目,但美中不足的是,该题所附的参考答案是不确切的。为补正该题所附答案,试分析解答如下.
“Physics Education”, 12th Issue, 1992, No. 26, page 26: A row of transverse waves propagates in a straight line in a space. At a certain moment, the two points A and B at a distance of s from a straight line are in equilibrium, and A and B are There is only one peak, and if time t has elapsed, B just reaches the peak position. What are the possible wave speeds of this wavelet? The reference answers given after the question are: s/2t, 3s/2t, s/4t, 3s/4t, s/6t. This is a class of mechanical wave exercises. Representative topics, but the only drawback is that the reference answers attached to this question are inaccurate. In order to correct the answers attached to this question, try to answer the questions below.