By how much will the loudness of a sound change when the amplitude of vibration is: A) doubled, B) tripled.
LOUDNESS = (amplitude)2
Amplitude is doubled then, the loudness of the sound becomes 4 times increased.
and If the amplitude is tripled, then the loudness is 9 times increased.
Amplitude is doubled then, the loudness of the sound becomes 4 times increased.
and If the amplitude is tripled, then the loudness is 9 times increased.