AnswersCrowley Credit Recovery Physics BWave Interactions

Reflection and Refraction Answers

10 verified answers1 views
1
Free Preview

Which are characteristics of a ray when it hits a boundary and refracts, but not when it hits the boundary and reflects? Check all that apply.changes direction changes speeddoes not change directiondoes not change speed bounces off the boundarypasses through the boundary

A
changes direction
B
changes speed
C
does not change direction
D
does not change speed
E
bounces off the boundary
F
passes through the boundary
2
Free Preview

A ray diagram is shown.

Question illustration
A
It shows an incident ray.
B
It shows that the ray is changing direction.
C
It shows the ray passing through the boundary.
D
It shows that angles form between the rays and the normal.
3

Kayla drew two ray diagrams to compare the behavior of light rays.

Question illustration
A
Diagram X shows reflection, and diagram Y shows refraction from a less dense to a denser medium.
B
Diagram X shows refraction from a less dense to a denser medium, and diagram Y shows reflection.
C
Diagram X shows reflection, and diagram Y shows refraction from a denser to a less dense medium.
D
Diagram X shows refraction from a denser to a less dense medium, and diagram Y shows reflection.
4

Rays of light strike a bumpy road and are reflected.

A
They will not follow the law of reflection.
B
Each will reflect at the exact same angle of reflection.
C
They will all travel in the same direction.
D
Each will reflect at an angle equal to its angle of incidence.
5

A ray diagram is shown.

Question illustration
A
The diagram shows refraction, and medium 1 is denser than medium 2.
B
The diagram shows refraction, and medium 1 is less dense than medium 2.
C
The diagram shows reflection, and medium 1 is less dense than medium 2.
D
The diagram shows reflection, and medium 1 is denser than medium 2.
6

Which best describes reflection and refraction?

A
In both reflection and refraction, rays pass through a boundary.
B
In both reflection and refraction, rays pass through a boundary.
C
In both reflection and refraction, rays bounce off a boundary.
D
In both reflection and refraction, rays bounce off a boundary.
E
In reflection, rays bounce off a boundary, and in refraction, rays pass through a boundary.
F
In reflection, rays bounce off a boundary, and in refraction, rays pass through a boundary.
G
In refraction, rays bounce off a boundary, and in reflection, rays pass through a boundary.
H
In refraction, rays bounce off a boundary, and in reflection, rays pass through a boundary.
7

An incident light ray strikes water at an angle of 20 degrees. The index of refraction of air is 1.0003, and the index of refraction of water is 1.33.The angle of refraction rounded to the nearest whole number is °.

Answer not available
8

A ray diagram is shown.

Question illustration
A
angle of incidence
B
angle of reflection
C
normal
D
medium
9

greater than 45 degrees eachless than 45 degrees eachequal in measuredifferent in measure

A
greater than 45 degrees each
B
less than 45 degrees each
C
equal in measure
D
different in measure
10

A ray diagram is shown.

Question illustration
A
index of refraction
B
index of reflection
C
angle of incidence
D
angle of refraction
11

Serena draws a diagram to compare what happens when rays hit a boundary and are either reflected or refracted.

Question illustration
A
X: ray bounces off a boundary and maintains constant speed Y: ray changes direction Z: ray passes through a boundary and changes speed
B
X: ray bounces off a boundary and changes speed Y: ray changes direction Z: ray passes through a boundary and maintains constant speed
C
X: ray bounces off a boundary and changes direction Y: ray maintains constant speed Z: ray passes through a boundary and does not change direction
D
X: ray bounces off a boundary and does not change directionY: ray maintains constant speed Z: ray passes through a boundary and changes direction
12

Light strikes a smooth wooden tabletop.

A
The light rays bounce off the table and all move in the same direction.
B
The light rays bounce off the table and move in different directions.
C
The light rays pass through the table and all move in the same direction.
D
The light rays pass through the table and move in different directions.
13

Which would most likely cause specular reflection?

A
a pathway with rough rocks
B
a shiny, smooth leaf
C
a small patch of soil
D
a rough log
14

Which statement describes how rays behave when they travel through media during reflection and refraction?

A
During refraction, rays stay in the original medium, and during reflection, rays pass into a new medium.
B
During reflection, rays stay in the original medium, and during refraction, rays pass into a new medium.
C
During reflection and refraction, rays stay in the original medium.
D
During reflection and refraction, rays pass into a new medium.
15

[BLANK]

A
specular
B
diffuse
C
straight
D
incident
16

A ray of light strikes a smooth surface and is reflected. The angle of incidence is 35°.

A
Rays will bounce in all directions, so the angle of reflection will be random.
B
Rays will bounce in all directions, so the angle of reflection will be less than 35°.
C
Rays will follow the law of reflection, so the angle of reflection will be 35°.
D
Rays will follow the law of reflection, so the angle of reflection will be random.
17

An incident ray of light strikes water at an angle of 30°. The index of refraction of air is 1.0003, and the index of refraction of water is 1.33.

A
22°
B
24°
C
30°
D
42°
18

Which formula represents Snell’s law?

A
n Subscript 1 Baseline plus sin theta Subscript 1 equals n Subscript 2 Baseline plus sin theta Subscript 2
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
19

Simon draws a diagram to illustrate the law of reflection.

Question illustration
A
Draw the incident ray so it is longer than the reflected ray.
B
Make the angle of reflection and the angle of incidence equal.
C
Switch the labels for incident ray and reflected ray.
D
Make the angle of incidence larger than the angle of reflection.

Did you find these answers helpful?

More from this Course

Quiz
19 verified answers

Wave Interactions

Quiz
18 verified answers

Electromagnetic Waves

Quiz
17 verified answers

Sound Waves