A window whose area is `2 m^(2)` opens on a street where the street noise results at the window an intensity level of `60 dB`. How much acoustic power energy from the street will it collect in a day?

A window whose area is `2 m^(2)` opens on a street where the street no

1.	A window whose area is `2 m^(2)` opens on a street where the street noise results at the window an intensity level of `60 dB`. How much acoustic power energy from the street will it collect in a day?
Answer» Correct Answer - A::B::C By definition sound level `= 10 log.(I)/(I_(o)) = 60` or `(I)/(I_(o)) = 10^(6)` rArr `I = 10^(-12) xx 10^(6) = 1mu W//m^(2)` power entering the room `= 1 xx10^(-6) xx 2 = 2mu W` Energy collected in a day `= 2 xx10^(-6) xx 86400` `= 0.173 J`

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A window whose area is `2 m^(2)` opens on a street where the street noise results at the window an intensity level of `60 dB`. How much acoustic power energy from the street will it collect in a day?

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