Question

which wave property determines first loudness second pitch

Answer 1

The loudness of a sound of a property determines the amplitude of the sound wave

The pitch of sound determines the formation of the sound producing source

Answer 2

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which wave property determines loudness and pitch

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a) Loudness is determined by the amplitude of the sound greater the amplitude hore will be the Loudness.

b) Pitch is determined by the frequency. Higher is the frequency, greater will be the pitch.