Wave Basic Concepts (id: 9250fa378)

本题目来源于试卷: Wave Basic Concepts，类别为 美国物理杯赛(Physics Bowl)

[单选题]
The graph below was produce by a microphone in front of a chq ,-j8q5,gt s.exyl tunoyjs(8 w or38sing fork. It shows the voltage produced from the microphone as a functio( swjosr3 88yon of time.


04.18: The frequency of the tuning fork is (approximately)

A. 0.0039 s
B. 0.020 s
C. 2.55 Hz
D. 50 Hz
E. 256 Hz


参考答案:  E


本题详细解析: 暂无

微信扫一扫，分享更方便