Question

which tubes in a set of panpipes make the lowest sound

Answer 1

Explanation:

The pan flute is an end-blown flute. Sound is produced by the vibration of an air-stream blowing across an open hole at the end of a resonating tube. The length of the tube determines the fundamental frequency. ... Every time the pitch goes up one octave, the frequency doubles.

Answer 2

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Noise tubes in a set of panpipes make the lowest sound