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範例:週期波與波形變化[81日大]

圖中實線為一列向右方行進的橫波在t=0時的波形,而虛線則為此列橫波在t=0.5秒時波形 ,若此列橫波的週期為T,具0.3秒<T<0.5秒,則此列橫波的波速為 (A)34公尺∕秒 (B) 26公 尺∕秒 (C)18公尺∕秒 (D)10公尺∕秒 (E)2公尺∕秒。【81日大】

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Posted in 歷屆物理考題, 週期波.

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By admin – 2009 年 08 月 10 日

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