In expressing sound intensity we take `10^(-12)(W)/(m^2)` as the reference level. For ordinary conversation the intensity level

In expressing sound intensity we take `10^(-12)(W)/(m^2)` as the reference level. For ordinary conversation the intensity level is about `10^-6(W)/(m^2)`. Expressed in decibel, this is
A. `10^6`
B. `6`
C. `10^5`
D. `10^10`

In expressing sound intensity we take `10^(-12)(W)/(m^2)` as the reference level. For ordinary conversation the intensity level is about `10^-6(W)/(m^

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