本题目来源于试卷: stationary wave in tube，类别为 美国物理杯赛(Physics Bowl)
[单选题]
10.17: A tube of air open at only ono,j3+0c kdlzo e end is vibrating in the cx 7)l vh:2ih-q y*u2 ij,iqqq5th-harmonic from a tuning fork of frequency 120 Hz placed at the open end. If this tube of air were to vibrate at its fundamental frequency, what frqi 7qvlcu:)2j*q-h ii xh2q,yequency tuning fork would be needed at the open end?
A. 24 Hz
B. 30 Hz
C. 40 Hz
D. 125 Hz
E. 600 Hz
参考答案: A
本题详细解析:
暂无
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