Doppler effect

5.28  Doppler effect. Phenomenon evidenced by the change in the observed frequency of a wave in a transmission system caused by a time rate of change in the effective length of the path of travel between the source and the point of...

speed of sound

5.27  speed of sound. Speed at which a wavefront advances in a sound field having the form of a free progressive wave. Unit, meter per second (m/s); symbol, c....

partial node

5.26  partial node. Point, line, or surface in a standing wave system where some characteristic of the wave field has a minimum value differing from zero. Annotation              An appropriate...

antinode

5.25  antinode. Point, line, or surface in a standing wave where some characteristic of the wave field has maximum value. Annotation              An appropriate modifier should be used before...

node

5.24  node. Point, line, or surface in a standing wave where some characteristic of the wave field has essentially zero amplitude. Annotation              The appropriate modifier should be...