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The intensity of sound from a radio at a...

The intensity of sound from a radio at a distance of 2 metres from its speaker is `1xx10^(-2) mu W//m^(2)`. The intensity at a distance of 10 meters would be

A

`10^-8 W/m^2`

B

`8×10^-8 W/m^2`

C

`2×10^-8 W/m^2`

D

`5×10^-9 W/m^2`

Text Solution

Verified by Experts

The correct Answer is:
B
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