1.

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

Answer»

the general range for human ear to perceive sound is between frequency range 20Hz to 20kHz. The humming of bees produces a sound of frequency that lies in this range while pendulum vibrations are of much lower frequency. The oscillations in pendulum is slow thus it has low frequency.



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