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Question 11 A speaker produces 1W of acoustical power. If the speaker projects sounduniformly in all directions, at what distance from the speaker will the loudness of the sound be 99.1 dB? Enter answer here 9.79 9.79 m CHECK ANSWER 1 of 4 attempts used
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Answer #1

I guess u forgot to take the root of your answer as this value corresponds to r^2

Hence correct answer will be r= 3.13 m

And procedure will be As

as dB= l blog ? 1. Alm Mos -2.09 9.12 83x lo ブ 上: 8.1283x) δ3

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