Sound WavesHard
Question
A sound absorber attenuates the sound level by 20 dB. The intensity decrease by a factor of :-
Options
A.100
B.1000
C.10000
D.10
Solution
-ᐃL = L1 - L2 = 10 log
20 dB = 10 log10
102 =
⇒ I2 = 
20 dB = 10 log10
102 =
⇒ I2 = Create a free account to view solution
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