试题与答案

在水中激起一列水波(可视为横波)使水面上漂浮的树叶片在6s内全振动了3次,当树叶

题型:选择题

题目:

在水中激起一列水波(可视为横波)使水面上漂浮的树叶片在6s内全振动了3次,当树叶片开始第6次振动时,沿水波传播的方向与该叶片相距10m的浮在水面上的另一树叶刚好开始振动,则(  )

A.水波的周期是0.5s

B.水波的波长为5/3m

C.水波的速度为1.0m/s

D.若振动的频率变大,则同样条件下波传播到10m远处树叶位置所用时间将变短

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C

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