Copyright

The intensity at a distance of a 6.0 m from a source that is radiating equally in all direction...

Question:

The intensity at a distance of a 6.0 m from a source that is radiating equally in all direction is {eq}1.6 \times 10^{-9} {/eq} W/m{eq}^2 {/eq}. What is the intensity level in dB?

Intensity Level in Decibel:

Let the intensity of sound for which the intensity level is zero be {eq}I_0 {/eq}.

Let the intensity of a certain sound be {eq}I {/eq}.

Then, the intensity level of this particular sound in decibel will be given by:

{eq}\displaystyle{L = 10 \ \log\left(\dfrac{I}{I_0}\right)} {/eq}

Answer and Explanation: 1

Become a Study.com member to unlock this answer!

View this answer

Given & Known

  • The intensity of the sound: {eq}I = 1.6\times 10^{-9} \ \rm W/m^2 {/eq}.
  • The intensity of the sound of zero intensity level:...

See full answer below.


Learn more about this topic:

Loading...
Intensity in Physics: Definition & Measurement

from

Chapter 5 / Lesson 10
13K

This 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.


Related to this Question

Explore our homework questions and answers library