Characteristics of Sound

Which of the following is NOT a characteristic of sound waves ?

Name the characteristic of sound which depends on (a) amplitude (b) frequency and (c) waveform.

Name the characteristic of sound which enables a person to differentiate between two sounds with equal loudness but having different frequency.

Define the characteristic of sound which enables a person to differentiate between two sounds with equal loudness but having different frequency.

We can distinguish between the muscial sounds produced by different signers on the basis of the characteristic of sound called:

Name the characteristic of sound which can distinguish between the 'notes' (musical sounds) played on a flute and a sitar (both the notes having the same pitch and loundness).