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A sound absorber attenuates the sound le...

A sound absorber attenuates the sound level by `20 dB`. The intensity decreases by a factor of

A

1000

B

10000

C

10

D

100

Text Solution

Verified by Experts

The correct Answer is:
D
`20=10log_(10)((I)/(I_(0)))`
`implies (I)/(I_(0))=10^(2)=100`.
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