The intensity level in decibels is defined as 10 log10(I/I0), where I0 is a reference intensity equal to the human threshold of hearing, 10–12 W/m2. What is the intensity of the threshold of pain, 120 decibels?answer is :10° W/m2 I'm not sure how they got this answer

Given data: Intensity level in decibels dB = 10 log10(I/I0) Here I0 = 10-12 W/m2 The intensity of…

Answered: The intensity level in decibels is…

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter17: Sound Waves

Section: Chapter Questions

Problem 17.20P: The area of a typical eardrum is about 5.00 X 10-5 m2. (a) (Calculate the average sound power...

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The intensity level in decibels is defined as 10 log₁₀(I/I₀), where I₀ is a reference intensity equal to the human threshold of hearing, 10^–12 W/m². What is the intensity of the threshold of pain, 120 decibels?

answer is :

10° W/m²

^{I'm not sure how they got this answer}

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