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A 10 W source of sound of frequency 1000...

A 10 W source of sound of frequency 1000 Hz sends out wave in air. The displacement amplitude a distance of 10 m from the source is (speed of sound in air = 340 m/s and density of air = 129 `kg//m^(3)`)

A

`0.62 mu m`

B

`4.2 mu m`

C

`1.6 mu m `

D

`0.96 mu m`

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The correct Answer is:
D
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