Question

If the amplitude increases 3 times ,by how much times will the loudness increase?
plz someone help

Answer 1

Thanks for asking the question.
As we already know that loudness is directly proportional to amplitude and also that loudness equals the square of amplitude. This means depending on the amplitude loudness will be increased if amplitude increases and vie versa.
Now if the amplitude is increased three times, the loudness will also be increased. It will increase nine times than amplitude.
Hope it helps.

Answer 2

Answer:

The intensity is the measure of loudness of a sound. Intensity is directly proportional to amplitude so amplitude will be(3)^2=9