Question

using an activity,how will you show that amplitude is directly proportional to loudness of sound ?​

Answer 1

Answer:

It is directly proportional to the square of the amplitude of vibration. If the amplitude of the sound wave becomes double, then the loudness of the sound will be quadrupled. It is expressed in decibel (dB).

...

Loudness of Sound.

Normal Breathing 10 dB

Average Factory 80 dB