Question

write about amplitude of sound wave

Answer 1

AMPLITUDE:

Magnitude of maximum disturbance on either side of the normal position or mean value in a medium is called amplitude. In other words, amplitude is the distance from normal to the crest or trough.

Amplitude is the energy of sound. Louder sound has greater amplitude and softer sound has shorter amplitude. Thus, louder or softer sound is determined by its amplitude. Since louder sound has greater energy consequently greater amplitude, thus it travels to a longer distance. Softer sound has smaller energy consequently shorter amplitude, thus it travels to a shorter distance.

Amplitude is denoted by letter ‘A’. The SI unit of amplitude is metre (m).
Hope this helps

Answer 2

Amplitude is the maximum distance from the mean position to the extreme position. loudness depends upon amplitude