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]
15.18: A 680 Hz tuning fork is placed ove vu;*o+.c6ict 8qhkfcr a tube open at both end 0w mimkxr cdg 6d*p.e-3ek;/zs that is filled with air. As a result, a stkw0eemzkdi;c-/ gd *3 xrp.6m anding wave in the $3^{rd}$-harmonic is produced. The speed of sound in air is 340 m/s. What is the length of the tube?
A. 0.38 m
B. 0.67 m
C. 0.75 m
D. 1.33 m
E. 1.50 m
参考答案: C
本题详细解析:
暂无
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