Standing Wave Harmonics in a Closed Tube
A standing wave is established in a tube that is closed at one end and open at the other. If the tube length is L, which of the following expressions correctly gives the wavelengths λₙ of the possible harmonics?
A
λₙ = 4L/n where n = 1, 2, 3, …
B
λₙ = 4L/(2n-1) where n = 1, 2, 3, …
C
λₙ = 2L/n where n = 1, 2, 3, …
D
λₙ = 2L/(2n-1) where n = 1, 2, 3, …
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