Concept explainers
To Find: The frequency of standing waves in the ear canal.
Explanation of Solution
Given:
Length of human ear canal
Speed of the sound wave
Formula used:
The frequency is given as,
Where,
is the speed of the sound
Calculation:
Since one end is open and other is closed, it is to be considered as closed pipe. So, for closed pipe the standing frequency can be determined by the following equation.
Now, substitute the values in the equation f
The frequency is 3430 Hz.
The resonant frequency is given by
Therefore, the first few frequencies are given as,
The given graph shows the relation between the frequency and sound level.
In the graph, most sensitive frequencies lie between
Conclusion:
The first few frequencies of the standing wave are
Chapter 12 Solutions
Physics: Principles with Applications
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