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

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

Answers (1)

The human ear can sense sound only if its frequency is more than 20 Hz and less than 20,000 Hz.

Sound of frequency less than 20 Hz is called infrasonic and a frequency more than 20,000 Hz is called ultrasonic.

The frequency of the disturbance created by humming bee is more than 20 Hz that’s why we can hear the sound.

Due to the vibration of pendulum, the frequency of disturbance is less than 20 Hz and we cannot listen the sound of vibration of pendulum.

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infoexpert24

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