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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

The human ear canal is about 2.8 cm long. If it is regarded as a tube that is open at one end and closed at the eardrum, what is the fundamental frequency around which we would expect hearing to be most sensitive?

To determine
The fundamental frequency of the sound which we would expect hearing to be more sensitive.

Explanation

Given Info: The length of the ear canal is 2.8 cm

Formula to calculate the fundamental wavelength is,

λ=4L

  • λ is the fundamental wavelength.
  • L is the length of the ear canal.

Substitute 2.8cm for L to find λ .

λ=4(2.8cm)(0.01m1cm)=0.112m

Formula to calculate the fundamental frequency is,

f=vλ

  • v is the speed of the sound in air

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