PURPOSE: To demonstrate resonance in a closed tube, and to show that noise contains a large range of frequencies..
DESCRIPTION: Noise played from an audiocassette comes out the speaker on top of the player. As the length of the tube is increased, the resonant frequency can be easily observed to become lower.
SUGGESTIONS:
REFERENCES: (PIRA unavailable.)
EQUIPMENT: Tape player with noise audiocassette, steel tube with cardboard outer tube.
SETUP TIME: None.
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