PLZ help me out of the above mentioned question.

Dear student,
Characteristics of sound are.
1. Loudness (that depends on amplitude, more the amplitude , the loudness will be more)
2. Pitch (depends on frequency, if the frequency is more, then pitch is high and vice versa.)
3. Quality or Timbre (depends on waveform)

Difference in between loudness and pitch:

Loudness	Pitch
Loudness is the property, on virtue of it, a loud sound can be distinguish from a faint sound	Pitch is the characteristic of sound, on virtue of that a shrill sound can be distinguished from a flat or grave sound
It depends on the amount of sound energy received  per unit time.	Pitch does not depends on amount of sound energy.
Loudness mainly depends on the amplitude, surface of the vibrating body, and distance between the source of sound and listener	Pitch mainly depends on the frequency of sound. If the frequency is high, then the sound is said to be high pitched and  if the sound has low frequency then the pitch is low.

Regards,