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Flashcards in Lesson 9 Deck (12)
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1

What does a large impedance between 2 medias produce?

A large IRC

2

What does perpendicular incidence depend on?

Acoustic impedance mismatch
- delta z

3

Oblique incidence

Sound beam hits the surface on an angle

4

What kind of transmission will oblique incidence have?

Either smaller or larger

5

What does it mean when the transmission are the same?

That the 2 mediums are the same, which results in same propagation speed

6

What 3 things will a single pulse have?

1. Incident pulse
2. Reflective pulse
3. Transmitted pulse

7

What are 3 angle measurements to consider?

1. Angle of incidence
2. Angle of reflection
3. Angle of transmission

8

Whats does transmitted angle change based on?

Propagation speed
- c

9

What is the change of propagation speed referred to as?

Refraction

10

What is the relationship with the angles if c1

Angle i < angle t

11

What is the relationship with the angles if c1>c2?

Angle i > angle t

12

What happens to an object in water when light gets refracted?

The object appears to be bigger
- lateral position error
- duplication of aorta