CVS 200 exam 3 (questions with answers) already
passed updated
1. Reflection angle =
When reflection occurs with oblique incidence (90-degree
Angle of incidence
angle), the sound beam is not redirected back toward the
transducer. Rather, the beam is reflected in a different
2. A sound beam strikes direction
a tissue boundary at
a 90° angle. the media have different impedances
Reflection occurs
only if
3. No reflection will
occur if two media Identical impedances
have
4. Small reflections occur slightly different
if impedances are
example: Air 330 & lung 500
5. Large reflections occur substantially different
if impedances are
example: Air 330 & Bone3500
6. Rule angle of incidence = angle of reflection
7. What is impedance? is the resistance of a system at a particular frequency
(sound traveling through a medium)
,CVS 200 exam 3 (questions with answers) already
passed updated
8. Refraction
, CVS 200 exam 3 (questions with answers) already
passed updated
"Bending of sound beam"
Change in direction of wave propagation when traveling from
one medium to another
Refraction (transmission with a bend)
9. normal incidence the study of reflection and transmission when sound strikes
an inter- face is straightforward
10. Refraction occurs - Oblique incidence
only if two conditions
(any angle other than 90 degree)
are satis- fied:
-Propagation speeds of two media are ditterent
11. What are the two
condi- tions that need Oblique incidence
to be sat-
isfied in order for a refrac- ditterent Propagation speeds of two ditterent medium
passed updated
1. Reflection angle =
When reflection occurs with oblique incidence (90-degree
Angle of incidence
angle), the sound beam is not redirected back toward the
transducer. Rather, the beam is reflected in a different
2. A sound beam strikes direction
a tissue boundary at
a 90° angle. the media have different impedances
Reflection occurs
only if
3. No reflection will
occur if two media Identical impedances
have
4. Small reflections occur slightly different
if impedances are
example: Air 330 & lung 500
5. Large reflections occur substantially different
if impedances are
example: Air 330 & Bone3500
6. Rule angle of incidence = angle of reflection
7. What is impedance? is the resistance of a system at a particular frequency
(sound traveling through a medium)
,CVS 200 exam 3 (questions with answers) already
passed updated
8. Refraction
, CVS 200 exam 3 (questions with answers) already
passed updated
"Bending of sound beam"
Change in direction of wave propagation when traveling from
one medium to another
Refraction (transmission with a bend)
9. normal incidence the study of reflection and transmission when sound strikes
an inter- face is straightforward
10. Refraction occurs - Oblique incidence
only if two conditions
(any angle other than 90 degree)
are satis- fied:
-Propagation speeds of two media are ditterent
11. What are the two
condi- tions that need Oblique incidence
to be sat-
isfied in order for a refrac- ditterent Propagation speeds of two ditterent medium
