# What is the sound intensity of a whisper at a distance of 2.0 m, in W/m2? What is the...

## Question:

What is the sound intensity of a whisper at a distance of 2.0 {eq}m{/eq}, in {eq}W/m^2{/eq}? What is the corresponding sound intensity level in dB?

## Intensity:

Mathematically, the intensity of a sound wave can be calculated by dividing the power source with the surface area. The fundamental unit used to measure it is watts per meters squared (W/m2 ). It is directly related to the value of the power source.

## Answer and Explanation: 1

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We are given the following data:

- Distance, {eq}{r_2} = 2.0\;{\rm{m}}{/eq}

Because the intensity of whisper at {eq}{r_1} = 1\;{\rm{m}}{/eq} is...

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Chapter 5 / Lesson 10This lesson explains what wave intensity in physics is, and it explains the intensity of light formula with examples. This lesson also describes how to calculate intensity of sound waves.

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