home *** CD-ROM | disk | FTP | other *** search
- Intensity of a wave is power per unit area. For sound waves, the intensity level b is measured in decibels and is defined as
-
-
-
-
- The quantity is a constant defined as
-
-
-
-
-
-
- the lowest intensity sound wave detectable by humans.
-
- Example:
- A truck is idling 5m from an open window. If the sound level measures 15dB, what is the intensity of the sound?
-
- Using equation (1),
-
-
-
-