Now playing · 08 Ultrasound
Reflection and transmission
r = -0.08306
R
=
(
Z
2
−
Z
1
Z
2
+
Z
1
)
2
,
T
=
1
−
R
R = \left(\frac{Z_2-Z_1}{Z_2+Z_1}\right)^2,\quad T=1-R
R
=
(
Z
2
+
Z
1
Z
2
−
Z
1
)
2
,
T
=
1
−
R
Intensity reflection at a normal planar interface.
Laser