Question
Calculate the first overtone in an ear canal, which resonates like a 2.40-cm-long tube closed at one end, by taking air temperature to be $37.0^\circ\textrm{C}$. Is the ear particularly sensitive to such a frequency? (The resonances of the ear canal are complicated by its nonuniform shape, which we shall ignore.)
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$11.0 \textrm{ kHz}$

See Figure 17.38. The ear is not especially sensitive to this frequency. Resonance in the ear canal is either not significant, or it's more complicated than accounted for by this model of the ear canal as a simple tube closed at one end.

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