Question

A music system was producing a sound of 20dB. if its amplitude of the sound of is trebled,will the music be pleasing​

Answer 1

Answer:

If the amplitude of the sound is made 3 times its initial value, then its loudness will become nine times its initial value.

Loudness depends on the square of the amplitude of the wave.

That is, Loudness∝(Amplitude)² .

Thus, when amplitude of the wave is tripled, the loudness increases nine times.