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A straight line source of sound of lengt...

A straight line source of sound of length `L=10m`, emits a pulse of sound energy (in mW) is intercepted by an acoustic cylindrical detector of surface area `2.4cm^2`. Located at a perpendicular distance 7 m from the source ? The waves reach perpenduculary at the surface of the detector. The total emiited by the source in the form of sound is `2.2xx10^(4)W`. (use `pi=22//7`)

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