Question

Sounds are produced by vibrating objects a certain object, vibrates but a person nearby cannot hear any sound

Which statement could explain why nothing is heard?

A the amplitude of the sound waves is too large

B the frequency of the vibration is too high

C the sound waves are transverse

D the speed of the sound waves is too high

Answer 1

B.
The frequency of the vibration is above the normal human auditory range.

Normal audible range is from 20 hertz(cycles per second), to 20,000 Hz
As we age it is the higher frequencies we lose.