Reflection coefficient (wave normal incidence)


At the boundary between media of different acoustic impedances, some of the wave energy is reflected and some is transmitted. The greater the difference in acoustic impedance between the two media, the greater the reflection and the smaller the transmission. The intensity reflection coefficient is defined as the ratio of the intensity of the reflected wave relative to the incident (transmitted) wave.

Related formulas


αReflection coefficient (dimensionless)
Z2Acoustic impendance of the 2nd medium (kg/m2*sec)
Z1Acoustic impendance of the1st medium (kg/m2*sec)