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Gaokao Physics Practice Question

在介质中有一沿水平方向传播的简谐横波. 一质点由平衡位置坚直 向上运动, 经 $0.1 \mathrm{~s}$ 第一次到达最大位移处, 在这段时间内波传播了 $0.5 \mathrm{~m}$, 则这列波

  1. A.周期是 $0.2 \mathrm{~s}$
  2. B.波长是 $0.5 \mathrm{~m}$
  3. C.波速是 $2 \mathrm{~m} / \mathrm{s}$
  4. D.经 $1.6 \mathrm{~s}$ 传播了 $8 \mathrm{~m}$

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