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A line source of sound of length 10 m, e...

A line source of sound of length 10 m, emitting a pulse of sound that travels radially outward from the source. The power of the source is P = 1.0.x `10^4` W What is the approximated intensity '/' of the sound when it reaches a distance of 10 m from the source?

A

16 W/`m^2`

B

25 W/`m^2`

C

11 W/`m^2`

D

6 W/`m^2`

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