- #1
nawidgc
- 25
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Consider two rigid and infinitely long parallel plates (say they are of infinite length in X direction, so running from -inf to +inf in X axis) separated by a distance d (say measured in Y-direction). Let the space between the plates be filled up with a fluid that supports acoustic waves. If we somehow setup the resonance of acoustic wave, the wavelengths corresponding to successive resonant modes are:
λ1 = 2d/1
λ2 = 2d/2
λ3 = 2d/3
and so on.
How does the wavelength change when the plates are no longer of infinite extent in X-direction? If the dimension in X-direction is of the same order as d, what effect would this have on the resonant frequencies/wavelengths?
λ1 = 2d/1
λ2 = 2d/2
λ3 = 2d/3
and so on.
How does the wavelength change when the plates are no longer of infinite extent in X-direction? If the dimension in X-direction is of the same order as d, what effect would this have on the resonant frequencies/wavelengths?