Welcome to the article The human ear canal is on average 2 5 cm long and aids in hearing by acting as a resonant cavity that is closed at. On this page, you will learn the essential and logical steps to better understand the topic being discussed. We hope the information provided helps you gain valuable insights and is easy to follow. Let’s begin the discussion!
Answer :
Answer:
[tex]3400[/tex] Hz
Explanation:
We know that
1 cm = 0.01 m
[tex]L[/tex] = Length of the human ear canal = 2.5 cm = 0.025 m
[tex]V[/tex] = Speed of sound = 340 ms⁻¹
[tex]f[/tex] = First resonant frequency
The human ear canal behaves as a closed pipe and for a closed pipe, nth resonant frequency is given as
[tex]f = \frac{(2n - 1)V}{4L}[/tex]
for first resonant frequency, we have n = 1
Inserting the values
[tex]f = \frac{(2(1) - 1) 340}{4(0.025)}[/tex]
[tex]f = \frac{340}{4(0.025)}[/tex]
[tex]f = 3400[/tex] Hz
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Rewritten by : Brahmana