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If the intensity of sound is doubled, by...

If the intensity of sound is doubled, by how many decibels does the sound level increase ?

A

`1 dB`

B

`2 dB`

C

`3 dB`

D

`4 dB`

Text Solution

Verified by Experts

The correct Answer is:
C
`L_(2)-L_(1)=10 log_(10) (I_(2)/I_(1))=10 log_(10) (2)`
`=10xx0.3=3 dB`
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