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October 21, 2014

Homework Help: PHYSICS

Posted by Melissa on Tuesday, August 9, 2011 at 9:57pm.

A 50cm long hollow glass cylinder is open at both ends and is suspended in air. A source o sound that produces a pure frequency is placed close to one end of the tube. The frequency of the sound is slowly increased from a very low value. The tube is first observed to resonate when the source frequency is 320Hz.
(I) The speed of the sound in the tube must be:
A: 320m/s

(II) The frequency of the source is slowly increased until resonance occurs again FOR THE THIRD TIME. The frequency at which this happens is:

(III) THe frequency when resonance occurs for the FIFTH time is:

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