Standing Sound Waves: An pipe of length L that is open at both ends is resonating at its fundamental frequency. Which statement about the sound is correct?
A. The wavelength is 2L and there is a displacement node at the pipe's midpoint.
B. The wavelength is 2L and there is a displacement antinode at the pipe's midpoint.
C. The wavelength is L and there is a displacement node at the pipe's midpoint.
D. The wavelength is L and there is a displacement antinode at the pipe's midpoint.
Answer: A
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