The human ear canal is, on average, 2.5cm long and aids in hearing by acting like a resonant cavity that is closed on one end and open on the other. the length of the ear canal is partially responsible for our sensitivities to certain frequencies. use 340m/s for the speed of sound when performing the following calculations. what is the first resonant frequency?

Hz

Explanation:

We know that

1 cm = 0.01 m

= Length of the human ear canal = 2.5 cm = 0.025 m

= Speed of sound = 340 ms⁻¹

= First resonant frequency

The human ear canal behaves as a closed pipe and for a closed pipe, nth resonant frequency is given as

for first resonant frequency, we have n = 1

Inserting the values

Hz

d) physical means can be used to separate the components of air.

because growing process had stoped after 4-5 year