Inverse Square
- A relationship in which a quantity is related to the reciprocal of the square of a second quantity.
- Acoustics
- Under far field/free field conditions, sound intensity varies inversely with the square of the distance from the source. In pure spherical divergence of sound from a point source in free space, the sound pressure level decreases 6 dB for each doubling of the distance.
See also: Inverse Proportionality, Sound Propagation.
Subjects: Mathematics