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範例:都卜勒效應[81日大]

一頻率為4000赫的聲源,在一周長為20公尺的水平圓形軌道上,以每秒繞一圈的等速率旋轉。假設聲速為340公尺∕秒,則位於同一水平面上遠處的靜止觀察者,聽到的最高頻率約為 (A)4500赫 (B)4250赫 (C)3788赫 (D)3765赫 (E)3555赫。【81日大】


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Posted in 歷屆物理考題, 都卜勒效應.

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By admin – 2009 年 10 月 09 日

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