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]
14.21: A tuning fork placed over a 57 cm column of air closed only 1 1unb o,hp g.7 gkx6virzfu)06r20elm oc qz cy8hi v.j;5*erat its bottom end produces a standing wave in the jqr6*r l c.zh5m 0;yive82eoc3rd harmonic. The speed of sound in air is 342 m/s. What is the frequency of the tuning fork?
A. 150 Hz
B. 300 Hz
C. 450 Hz
D. 600 Hz
E. 900 Hz
参考答案: C
本题详细解析:
暂无
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