For an open-closed tube, the sound frequency is expressed as:

$\overline{){\mathbf{f}}{\mathbf{=}}{\mathbf{m}}{\mathbf{\left(}}\frac{\mathbf{v}}{\mathbf{4}\mathbf{L}}{\mathbf{\right)}}}$, 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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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Standing Sound Waves concept. You can view video lessons to learn Standing Sound Waves. Or if you need more Standing Sound Waves practice, you can also practice Standing Sound Waves practice problems.

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