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 o1g k-l8yra (ctbc n7b)ver a tube open at both ends that is 6b xw2 /3q.hxg1 fijjqfilled with air. As a result, w6x3/h.fixjj1qqb g2 a standing 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
| 
