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 one end is vibrating in the 5th-harmon 7h3. ky2o:q3gxve vblicw -;za9syvv:4p lz2d1 zj*gfb 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 frequency tuning fork would be needed azay*;2 j z1lvd:9 v4sbfpw-gzt 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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