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Why do we hea...

Question

Why do we hear the sound produced by the humming bees while the sound of vibrations of pendulum is not heard?

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Solution

Humming bees produce sound by vibrating their wings.
The sound produced is in the audible range (20 Hz to 20,000 Hz).
In case of pendulum the frequency is below 20 Hz which does not come in the audible range.
Our ear is not able to perceive such low-frequency vibrations.

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Q. Question 13
Why do we hear the sound produced by the humming bees while the sound of vibrations of pendulum is not heard?

Q. Why we can hear the sound produced by bees but we cant hear the sound of vibrations of pendulum?

Why can't we hear the sound produced by a vibrating pendulum?

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