Resonance in air column

Resonance in air column - LAB REPORT EXPERIMENT #4...

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LAB REPORT EXPERIMENT #4 RESONANCE OF AN AIR COLUMN DATE PERFORMED: APRIL 29, 2007 DAEJIN (BRYAN) KIM LAB PARTNER: ALFONSO HERMANDEZ
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Procedure: In this lab experiment we investigate the speed of sound by observing the resonances of sound wves in a column of air. We are given an air column with a single frequency so that one mode of oscillation is excited. In a real instrument, the air column is presented with a rich sound containing many frequencies so that several modes are excited at once. Data: Antinode 288Hz 320Hz 384Hz 480Hz 512Hz 341.3H z 426.7H z Position s X1 (m) 0.275 0.155 0.0 0.162 0.091 0.076 0.275 X2 (m) 0.825 0.684 0.405 0.526 0.423 0.583 0.654 X3 (m) 0.846 0.886 0.754 X4 (m) Xave (m) 0.55 0.529 0.423 0.362 0.331 5 0.507 0.379 λ (m) 1.19 1.08 0.896 0.717 0.672 1.014 0.758 T(sec) = 1/f 0.003 5 0.003 1 0.002 6 0.002 1 0.001 9 0.0029 0.0022
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λ vs. T 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004 T (sec) λ (m) Slope = speed of sound = 338 m/s Speed of sound in the room (calculated) 334 m/s
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This note was uploaded on 03/10/2008 for the course PHY 132L taught by Professor Johnson during the Spring '07 term at Cal Poly Pomona.

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Resonance in air column - LAB REPORT EXPERIMENT #4...

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