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PRACTICE / Resonance tube experiment

Cancel the open-end correction

A 500 Hz tuning fork excites a closed-open resonance tube. The first two successive resonances occur at air-column lengths 0.16 m and 0.50 m.

Find the speed of sound.

Organize the givens & assumptions
  • f = 500 Hz
  • L₁ = 0.16 m
  • L₂ = 0.50 m

Same frequency and air temperature; approximately equal end correction at both resonances; no skipped mode.

  1. A170 m/s170\ \mathrm{m/s}
  2. B320 m/s320\ \mathrm{m/s}
  3. C680 m/s680\ \mathrm{m/s}
  4. D340 m/s340\ \mathrm{m/s}

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