Problem: 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?

FREE Expert Solution

a. For open-open pipe,

L = λ/2

λ = v/f = 343/27.5 = 12.47 m

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Problem Details

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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