Dividing mean free path by sound speed gives time between reflections

Evidence

The time between surface interactions may be simply calculated from Equation 6.15 by dividing it by the speed of sound to give: where τ = the time between reflections (in s) and c = the speed of the sound (in ms−1) Equation 6. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1827

Categorization

• XREF: Cross-references Equation 6.15 from the immediately preceding paragraph; reading requires the neighbouring equation chain.