For an open-closed tube, the sound frequency is expressed as:
, where m is the possible standing mode (1,3,5,7,...), v is the velocity of sound, and L is the length of the tube.
The standing mode values at which the child will have increased the hearing sensitivity are m = 1,3
A child has an ear canal that is 1.3 cm long. Assume the speed of sound is v = 344 m/s. At what sound frequencies in the audible range will the child have increased hearing sensitivity?
Express your answer using two significant figures. Enter your answers numerically separated by commas.
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