Question #272
A tube is positioned over a loudspeaker that is producing the sound of
broadband noise, as heard by clicking your mouse on the photograph
at the left below.
The tube can be telescoped into a longer tube by pulling up the outer
liner, as seen in the photograph at the right above.
When the tube is elongated, the frequency of the tone produced will:
- (a) increase, due to the resonance of the tube.
- (b) decrease, due to the resonance of the tube.
- (c) remain the same.
- (d) become much softer due to resonant absorption.
Click here for Answer #272 after February 5, 2007.
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