a. For open-open pipe,
L = λ/2
λ = v/f = 343/27.5 = 12.47 m
An organ pipe is made to play a low note at 27.5 Hz, the same as the lowest note on a piano. Assuming a sound speed of 343 m/s,
a. What length open-open pipe is needed?
b. What length open-closed pipe would suffice?
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