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In a sound wave, to increase the intensi...

In a sound wave, to increase the intensity by a factor of 10, pressure amplitude must be changed by a factor of

A

`sqrt(10)`

B

`10`

C

`10sqrt2`

D

`sqrt(20)`

Text Solution

Verified by Experts

The correct Answer is:
A
`IpropP_0^2`
`(I')/(I)=(P_0^(2'))/(P_0)impliesP_0'=P_0sqrt((I')/(I))`
`impliesP_0'=sqrt(10)P_0`
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