Why do we hear the sound produced by the humming bees while the sound of vibrations of pendulum is not heard?
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
Soln:
Humming bees produce the sound by beating their wings and the frequency of sound they produce will be in the range of 20Hz to 20000 Hz which is audible . On the other hand pendulum produces sound less than 20 hz which is below audible range and we don’t hear the sound of pendulum vibrations.
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