|Oct18-10, 12:50 PM||#1|
Pipes and resonant mode with a node in exact center
1. The problem statement, all variables and given/known data
What kind of pipe can never have a resonant mode with a node in the exact center? (choices are closed on both ends, open/closed on one end only. open on both ends) why?
2. Relevant equations
3. The attempt at a solution
I think its closed on both ends because there is no where for the sound to escape, it keeps going back and forth threw the tube, but im not sure.
|Oct18-10, 02:31 PM||#2|
I'd go with the one open on both ends. In order to achieve resonance you need a bouncing surface. In the open pipe, the perturbation will pass right through and there won't be any waves colliding and interfering, hence, no resonance.
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