Question

Distinguish between loudness and intensity of sound class9

Answer 1

Answer:

Intensity:

1) It is sound energy passing through a given point in one second.

2) It does not depend upon sensitivity of ear.

3) Its unit is watt/m².

Loudness:-

1) It is affected by the amplitude of the sound wave but depends on our hearing ability.

2) It is relative because it depends upon both intensity and sensitivity of ear.

3) Its unit is decibel.

Answer 2

Answer:

Explanation:

Loudness is the measure of response of the ear to the sound. Intensity is the sound power per unit area.

Loudness is measured in decibels. Intensity is measured in Watt per meter square.

Loudness is dependent on the sensitivity of the human ears. Intensity is independent of the sensitivity of the human ears.

Loudness is a subjective quantity. Intensity is an objective quantity.