Answer:
Loudness
Intensity
1.Loudness is a measure of response of our ear to the
sound.
1.It is the energy passing per second per unit area
normal to the direction of energy flow.
2.It depends on intensity as well as sensitivity of the
ear. Therefore, it is not absolute but relative.
2.It does not depend upon the sensitivity of the ear.
3.The unit of loudness is decibel.
3.The unit of intensity is watt/m2
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