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A sound wave from a siren has an intensity of 100.0 point, what the sound intensity level of the sound?

Respuesta :

Blacklash

Answer:

Sound intensity level of the sound = 140 dB

Explanation:

We have expression for sound intensity level

             [tex]L=10log_{10}\left ( \frac{I}{I_0}\right )[/tex]

We have sound intensity, I = 100 W/m²

                                          I₀ = 10⁻¹² W/m²

We need to find sound intensity level

Substituting

            [tex]L=10log_{10}\left ( \frac{I}{I_0}\right )=10log_{10}\left ( \frac{100}{10^{-12}}\right )=10x14=140dB[/tex]

Sound intensity level of the sound = 140 dB

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