The loudness (L) of a sound is directly proportional to the square of amplitude of wave.
Loudness ∝ (amplitude)2
L = (2)2 = 4 times.
So, if the amplitude (a) of a wave is doubled, loudness will be four times.
The loudness (L) of a sound is directly proportional to the square of amplitude of wave.
Loudness ∝ (amplitude)2
L = (2)2 = 4 times.
So, if the amplitude (a) of a wave is doubled, loudness will be four times.