Question

Why does a vibrating simple pendulum not produce any sound?

Answer 1

1. Humans can hear only the sounds in the audible range i.e. 20 Hz- 20,000 Hz.
2. A vibrating simple pendulum produces a sound of frequency less than 20 Hz.
3. So, we are not able to hear the sound produced by a vibrating simple pendulum.
4. Therefore, we feel that a vibrating simple pendulum doesn't produce any sound.