Question

urgent please odd one out and with reason.

Answer 1

amplitude is the answer.

Pitch: Frequency determines the shrillness or the pitch of the sound. Higher the frequency, higher the pitch or it is said that the sound is shrilling. Lower the frequency, lower the shrill or pitch. Eg: Babies voice has more frequency and thereby more shrilling than an adult voice.

Answer 2

amplitude is the answer as pitch is determined by it.
hope it helps u