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 of7r)w(y+js b)3q o/tsst 5reer2 4f /xpbow ci6 ikf6*sc)y9e g air closed only at its bottom end produces a standing wave in the 3rd harmonic. The speed of sound in air is 342 m/s. What is the frequencykic6e9*f) ygs 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
| 
