Compare loudness with intensity. Are they similar or different? [2 MARKS]

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Solution

Individual Definitions : 1 Mark each

Loudness is a measure of the compression formed in the Ear drums. If a wave is loud, it means it has a large amplitude.

On the other hand, intensity is the amount of disturbance reaching our ears. It is the amount of sound energy passing each second through a unit area.

Hence, they are not similar.

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Compare sound of a baby with sound of a man. Even if both have same loudness, how they differ. Explain the factor which cause difference. [3 MARKS]

4 : 1

d B

4 : 1

d B

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