Question

State three factors on which loudness of sound heard by a listener depends.

State three factors which affect the loudness of a sound heard by a listener.

Answer 1

The loudness of a sound heard by a listener depends on:

1. Loudness is directly proportional to the square of the amplitude.
2. Loudness varies inversely with the square of distance.
3. Loudness is directly proportional to the surface area of a vibrating body.