The sound from a busy highway contains a 500 Hz Fourier component whose power at the...

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Physics

The sound from a busy highway contains a 500 Hz Fouriercomponent whose power at the highway is 1.5 âœ• 10^âˆ’6watt/m. (Ignore sound interactions with the ground).
(a)What are the sound intensity (in W/m²), the soundintensity level (in dB) and the loudness (in phon) of that Fouriercomponent at a distance of 25 m from the highway?
intensity=?Â Â W/m²
intensity level =? dB
loudness=?Â Â phon
(b)What are the sound intensity (in W/m²), the soundintensity level (in dB) and the loudness (in phon) of that Fouriercomponent at a distance of 50 m from the highway?
intensity=? W/m²
intensity level=? dB
loudness=? phon

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3.6 Ratings (647 Votes)

a Intensity I will beReference value for intensityI0 1012 Wm2 Therefore theintensity level in dB will beFor a pure tone at 1 kHz loudnessin phon equals sound pressure See Answer

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