What determines the loudness of sound ?

Name the physical quantity which determines the loudness of sound ?

Which of the following parameters determines the loudness of sound ?

Which of the following quantity determines the loudness of a sound wave ? (i) wavelength, (ii) frequency, and (iii) amplitude.

(a) What is meant by the 'loudness' of sound? On what factor does the loudness of a sound depend? (b) Draw labelled diagrams to represent (a) soft sound, and (b) loud sound, of the same frequency.

State two physical factors which determine loudness of sound.

Loudness measures the sound energy reaching the ear per second and depends on the amplitude of the sound wave. What is the unit used to measure the loudness of sound?

What is the level of loudness of a sound of intensity 10^(-12) W//m^2 ?

What is the level of loudness of a sound of intensity 10^(-12) W//m^2 ?