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The pressure amplitude in a sound wave f...

The pressure amplitude in a sound wave from a radio receiver is `2.0 xx 10^(-2)"N m"^(-2)` and the intensity at a point is `5.0 xx 10^(-7)"W m"^(-2)`. If by turning the volume knob the pressure amplitude is increased to `2.5 xx 10^(-2)"N m"^(-2)`, evaluate the intensity.

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To solve the problem, we will follow these steps: ### Step 1: Understand the relationship between intensity and pressure amplitude The intensity \( I \) of a sound wave is directly proportional to the square of the pressure amplitude \( A \). This can be expressed mathematically as: \[ I \propto A^2 \] This means that if we have two different intensities and their corresponding amplitudes, we can set up a ratio: ...
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