#### Reflectance and Transmittance of a Yielding String Termination

Consider the special case of a reflection and transmission at a
*yielding termination*, or ``bridge'', of an ideal vibrating
string on its right end, as shown in Fig.C.28. Denote the
incident and reflected velocity waves by and ,
respectively, and similarly denote the force-wave components by
and
. Finally, denote the velocity of the
termination itself by
, and its force-wave
reflectance by

The bridge velocity is given by

*bridge velocity transmittance*is given by

*force transmittance*is given by

**Next Section:**

Power-Complementary Reflection and Transmission

**Previous Section:**

Evanescent Wave due to Total Internal Reflection