Ques.20) Two waves are shown below :

(a) Which of the two waves corresponds to high pitched sound?
(b) Name the characteristic of sound the graphs represent.
(c) Define the characteristic.

i. First wave has high pitched sound.
ii. The graph shows frequency and amplitude.
iii. Frequency means no of vibration produced in 1 second
Amplitude means the highest displacement of the sound wave that dicides loudness of sound.