An organ pipe is made to play a low note at 27.5 Hz, the same...

Anne Wacker

Anne Wacker

Answered

2022-01-03

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, what length open-open pipe is needed? What length open-closed pipe would suffice?

Answer & Explanation

aquariump9

aquariump9

Expert

2022-01-04Added 40 answers

The formula for a standing wave's frequency in an open-ended tube is
f1=v2L 
L=v2f1 
L=3432×27.5 
L=6.236 m 
The formula for a standing wave's dor frequency in an open-close tube is
f1=v4L 
L=v4f1 
L=3434×27.5 
L=3.118 m

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