本题目来源于试卷: Stationary wave on string，类别为 美国物理杯赛(Physics Bowl)
[单选题]
94.19: A string is firwqvdy cc, :n6d4l:-6jop +wbnmly attached at both ends. When a freque4; f: aqu.bcvqncy of 60 Hz is applied, the string vibrates in the standing wave pattern shown to the right. Assume the tension in the string and its mass per unit length do not change. Which of the following frequ: c.;qau bqfv4encies could NOT also produce a standing wave pattern in the string?
A. 30 Hz
B. 40 Hz
C. 80 Hz
D. 100 Hz
E. 180 Hz
参考答案: A
本题详细解析:
暂无
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