Question

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

Answer 1

Three factors for the loudness of sound :
(i) The surface area of a sounding body. i.e. is directly proportional to surface area of vibrating body.
(ii) On the distance of the source of the sound, i.e. decreases with distance.
(iii) On Amplitude of the wave: i.e. increases with amplitude.