Find its sound power output

Reference no: EM13650325

Assume that a loudspeaker broadcasts sound equally in alldirections and produces sound with a level of 109 dB at a distance of 1.66m from the center.

(a) Find its sound power output.

(b) If the salesperson claims to be giving you 170 W per channel, he is referring to the electricalpower input to the speaker. Find the efficiency of the speaker --that is, the fraction of input power that is converted into usefuloutput power.

Reference no: EM13650325

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