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My teacher and the textbook seem to be conflicting with eachother, and I would like to know who's right. The image on the left was scanned streight out my my textbook, saying that the third resonance is 5/4 lamda. On the right, is an edited version of the textbook image,showing what my teacher had showed me to display the third resonance in an air coloum. He calims that it's 1 lamda. Who's right? or are they both right? Thanks in advance for any help!:tongue:

http://img428.imageshack.us/img428/9123/resonance8hc.png [Broken]

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# Homework Help: Resonance in Closed Air Coloumn

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