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A cordless microphone emits sound with an average power output of 73.9 W. Calculate the distance (in meters) at which the intensity of the sound is 1 x 10-8 W/m2

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.61P

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Concept explainers

Radiation

Radiation can be described as the energy in the form of a particular matter or electromagnetic waves traveling in the air and can be in the form of light, sound, and heat. Radiation can be detected through special instruments like X-rays. The radiation from a cooler object is less intense as compared to the radiation from hot objects.

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A cordless microphone emits sound with an average power output of 73.9 W. Calculate the distance (in meters) at which the intensity of the sound is 1 x 10-8 W/m2

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