A New Resonance Tube

• Alan Bates ^[1]
  1. [1] John Cabot University

     John Cabot University

     Roma Capitale, Italia

     
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 55, Nº. 9, 2017, págs. 544-545
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The measurement of the speed of sound in air with the resonance tube is a popular experiment that often yields accurate results. One approach is to hold a vibrating tuning fork over an air column that is partially immersed in water. The column is raised and lowered in the water until the generated standing wave produces resonance: this occurs at the point where sound is perceived to have maximum loudness, or at the point where the amplitude of the standing wave has maximum value, namely an antinode. An antinode coincides with the position of the tuning fork, beyond the end of the air column, which consequently introduces an end correction. One way to minimize this end correction is to measure the distance between consecutive antinodes.