Question

name the property which determines loudness and pitch of sound

Answer 1

loudness depend on the amplitude of sound wave
pitch determines on the frequency of the sound wave
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Answer 2

Loudness is a measure of the response of the ear to the sound and it is measured in "Decibels".It depends on amplitude as greater the amplitude,louder will be the sound

Pitch is the shrillness of sound. It depends on frequency.Higher the frequency greater will be the pitch of the sound.