A person blows into a tube of length L that is open at one end and closed at the other. What is the wavelength of the first harmonic of the tube?
一道SAT2物理题，答案是4L不太明白，为什么....
能仔细讲下么？
A person blows into a tube of length L that is open at one end and closed at
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解决时间 2021-02-04 07:07
- 提问者网友：遮云壑
- 2021-02-03 19:13
最佳答案
- 五星知识达人网友：过活
- 2021-02-03 20:22
For a close-end pipe
1st harmonic: Wavelength = 4L
3nd harmonic: Wavelength = (3/4)L
5th harmonic: Wavelength = (4/5)L
1st harmonic: Wavelength = 4L
3nd harmonic: Wavelength = (3/4)L
5th harmonic: Wavelength = (4/5)L
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- 1楼网友：天凉才是好个秋
- 2021-02-03 20:55
不明白啊 = =！
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