Amplitude of different sound can be recognized on the basis of loudness of the sound. A loud enough sound is said to have greater amplitude in comparison to a feeble sound.
For example, sounds emanating from drums during the prayer of assembly in the school are very loud and hence of larger amplitude. But the sound produced while we are taking pledge in the assembly is a feeble sound and hence of smaller amplitude.
Frequency of different sound can be recognized on the basis of pitch of the sound, which is the measure of shrillness of the sound.
Higher the pitch of the sound higher is the frequency and vice versa.
For example, A bird makes high pitch sound and a lion makes low pitch roar. Similarly, in general the pitch of girls voice is higher than that of boys.
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