Name _______________________Chap 17
1. The diagram below shows parallel rays of light incident on an irregular surface. Which
phenomenon of light is illustrated by the diagram?
a)
refraction
b)
diffuse reflection c)
diffraction
d)
regular reflection
Reflection
Know ledge
2. A light ray is incident on a plane mirror as shown in the diagram below. Which ray best
represents the reflected ray?
a)
B
b)
D
c)
C
d)
A
Reflection
Know ledge
3. A ray of monochromatic light traveling in air is incident on a plane mirror at an angle of
30.degrees, as shown in the diagram below. The angle of reflection for the light ray is
a)
90. degrees
b)
60. degrees
c)
15. degrees
d)
30. degrees
Reflection
Know ledge
4. A ray of light strikes a plane mirror at an angle of incidence equal to 35 degrees. The angle
between the incident ray and the reflected ray is
a)
35 degrees
b)
55 degrees
c)
70 degrees
d)
0 degrees
Reflection
Know ledge
5. When a student looks into a plane mirror, she sees a virtual image of herself. However, when
she looks into a sheet of paper, no such image forms. Which light phenomenon occurs at the
surface of the paper?
a)
polarization
b)
regular reflection c)
diffuse reflection
d)
resonance
6. Electromagnetic radiation having a wavelength of 1.3 x 10-7 meter would be classified as
a)
blue
b)
ultraviolet
c)
orange
d)
infrared
Electromagnetic W
Plug-in
7. A 2.00 x 106 hertz radio signal is sent a distance of 7.30 x 10 10 meters from Earth to a spaceship
orbiting Mars. Approximately how much time does it take the radio signal to travel from Earth to
the spaceship?
a)
1.46 x 1017 s
b)
4.11 x 10-3s
c)
2.19 x 108 s
d)
2.43 x 102 s
Electromagnetic W
Plug-in
8. What is the frequency of a light wave with a wavelength of 6.0 x 10-7 meter traveling through
space?
a)
5.0 x 1014 Hz
b)
2.0 x 10-15 Hz
c)
5.0 x 101 Hz
d)
1.8 x 1014 Hz
Electromagnetic W
Plug-in
9.As yellow light ( ƒ = 5.09 × 1014 Hz) travels from zircon into diamond, the speed
of the light
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

1 decreases
2 increases
3 remains the same
10.The diagram below represents a transverse wave.
The distance between which two points identifies the amplitude of the wave?
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


1
2
3
4
A and B
A and C
A and E
D and E
11.A microwave and an x ray are traveling in a vacuum. Compared to the wavelength and
period of the microwave, the x ray has a wavelength that is
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1
2
3
4
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1
2
3
4
longer and a period that is shorter
longer and a period that is longer
shorter and a period that is longer
shorter and a period that is shorter
12 Which type of wave requires a material medium through which to travel?
electromagnetic
infrared
sound
radio
13 A car traveling at 70 kilometers per hour accelerates to pass a truck. When the car
reaches a speed of 90 kilometers per hour the driver hears the glove compartment door
start to vibrate. By the time the speed of the car is 100 kilometers per hour, the glove
compartment door has stopped vibrating. This vibrating phenomenon is an example of




1
2
3
4
the Doppler effect
diffraction
resonance
destructive interference
14.A beam of monochromatic light approaches a barrier having four openings, A, B, C, and
D, of different sizes as shown below.
Which opening will cause the greatest diffraction?
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
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






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


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




1
2
3
4
A
B
C
D

15.Which diagram best represents the path taken by a ray of monochromatic light as
it passes from air through the materials shown?

1

2

3

4
16. What is the speed of light in a medium having an absolute index of refraction of 2.3?
1. 0.77 X 108 m/s
3. 1.5 X 108 m/s
2. 1.3 X 108 m/s
4. 2.3 X 108 m/s
17. Compared to wavelengths of visible light, the wavelengths of ultraviolet light are
1. shorter
3. the same
2. longer
18.. The accompanying diagram shows a ray of light passing through two media.
When the wave travels from medium A into medium B, its speed
1. decreases
3. remains the same
2. increases
19.. A monochromatic beam of light has a frequency of 6.5 × 10 14 hertz. What color is the light?
1. yellow
3. violet
2. orange
4. blue
20. What is the measure of the angle of refraction? [Use a protractor or a mathematical
calculation.]
1. 19o
3. 49o
2. 30.
4. 60.o
o
21. The speed of the light in Lucite is
1. 1.5 x 108 m/s
3. 3.0 x 108 m/s
2. 2.0 X 108 m/s
4. 4.5 x 108 m/s
22. If the critical angle for a substance is 44'. the index of refraction of the substance is equal to
1. 1.0
3. 1.4
2. 0.69
4. 0.023
23. The distance from the Moon to the Earth is 3.9 X 108 meters. What is the time required for a
light ray to travel from the Moon to Earth?
1. 0.65 s
3. 2.6 s
2. 1.3 s
4. 3.9 s
24. Parallel light rays are incident on the surface of a plane mirror. Upon reflection from the
mirror, the light rays will
1. converge
3. be parallel
2. diverge
4. be scattered
25. A 2.00 x 106 hertz radio signal is sent a distance of 7.30 x 1010 meters from Earth to a
spaceship orbiting Mars. Approximately how much time does it take the radio signal to travel from
Earth to the spaceship?
a)
1.46 x 1017 s
b)
4.11 x 10-3s
c)
2.19 x 108 s
d)
2.43 x 102 s
Electromagnetic W
Plug-in
26. What is the frequency of a light wave with a wavelength of 6.0 x 10-7 meter traveling through
space?
a)
2.0 x 10-15 Hz
b)
1.8 x 1014 Hz
c)
5.0 x 1014 Hz
d)
5.0 x 101 Hz
26 . Base your answer to this question on the diagram below, which represents a light ray
traveling from air to Lucite to medium Y and back into air. The sine of angle x is
a)
0.886
b)
0.333
c)
0.707
d)
0.5
Refraction
Plug-in
27.. What is the wavelength of a light ray with frequency 5.09 x 1014 hertz as it travels through
Lucite?
a)
5.89 x 10-7 m
b)
3.93 x 10-7 m
c)
7.64 x 1014 m
d)
3.39 x 1014 m
Refraction
Plug-in
28.. A ray of light (f = 5.09 x 1014 Hz) traveling in air strikes a block of sodium chloride at an angle
of incidence of 30.degrees. What is the angle of refraction for the light ray in the sodium chloride?
a)
19 degrees
b)
40. degrees
c)
25 degrees
d)
49 degrees
Refraction
Plug-in
29.. A ray of light ( f = 5.09 x 1014 Hz) traveling in air is incident at an angle of 40.� on an aircrown glass interface as shown below. What is the angle of refraction for this light ray?
a)
25 degrees
b)
37 degrees
c)
78 degrees
d)
40 degrees
30.. The diagram below represents a ray of monochromatic light (f = 5.09 x 10 14 Hz) passing from
medium X (n = 1.46) into fused quartz. Which path will the ray follow in the quartz?
a)
C
b)
B
c)
A
d)
D
Refraction
Plug-in
31.. A ray of monochromatic light (f = 5.09 x 1014 hertz) in air is incident at an angle of 30.� on a
boundary with corn oil. What is the angle of refraction, to the nearest degree, for this light ray in
the corn oil?
a)
20. degrees
b)
30. degrees
c)
6 degrees
d)
47 degrees
Refraction
Plug-in
32.. A beam of monochromatic light travels through flint glass, crown glass, Lucite, and water. The
speed of the light beam is slowest in
a)
water
b)
crown glass
c)
Lucite
d)
flint glass
Refraction
Reference Table
33. A beam of monochromatic light (f = 5.09 x 1014 hertz) passes through parallel sections of
glycerol, medium x , and medium Y as shown in the diagram below. What could medium x and
medium Y be?
a)
x could be corn oil and Y could be flint
glass.
c)
x could be glycerol and Y could be water.
b)
oil.
d)
x could be water and Y could be glycerol.
x could be flint glass and Y could be corn
Refraction
Reference Table
34. In the diagram below, monochromatic light (l = 5.9 x 10-7 meter) in air is about to travel
through crown glass, water, and diamond. l = 5.9 x 10-7 m. In which substance does the light
travel the slowest?
a)
diamond
b)
crown glass
c)
water
d)
air
Refraction
Reference Table
35. A light ray passes from air into glass as shown in the diagram below. Which relationship
represents the index of refraction of the glass?
a)
sin A/sin D
b)
sin B/sin C
c)
sin B/sin D
d)
sin A/sin C
36.A ray of monochromatic light of frequency 5.09 × 1014 hertz is traveling from water into
medium X. The angle of incidence in water is 45° and the angle of refraction in medium X is
29°, as shown.
Calculate the absolute index of refraction of medium X. [Show all work, including the
equation and substitution with units.]
37.A ray of monochromatic light of frequency 5.09 × 10 14 hertz is traveling from water into
medium X. The angle of incidence in water is 45° and the angle of refraction in medium X is
29°, as shown.
Medium X is most likely what material?
_______________________________________________
Directions: Base your answers to questions 38 through 71 on the diagram below, which
shows a light ray ( f = 5.09 × 1014 Hz) in air, incident on a boundary with fused quartz. At
the boundary, part of the light is refracted and part of the light is reflected.
Calculate the angle of refraction of the incident light ray. [Show all work, including the
equation and substitution with units.]
Using a protractor and straightedge, construct the refracted light ray in the fused quartz on
the diagram below.
Using a protractor and straightedge, construct the reflected light ray on the diagram below.
Question: 38
Using a protractor, measure the angle of incidence of the light ray at the air-fused quartz
boundary.
________________________________
Question: 39
Base your answers on the diagram below, which shows a light ray ( f = 5.09 × 10 14 Hz) in
air, incident on a boundary with fused quartz. At the boundary, part of the light is refracted
and part of the light is reflected.
Calculate the angle of refraction of the incident light ray. [Show all work, including the
equation and substitution with units.]
___________________________________
Question: 40
Base your answers on the diagram below, which shows a light ray ( f = 5.09 × 10 14 Hz) in
air, incident on a boundary with fused quartz. At the boundary, part of the light is refracted
and part of the light is reflected.
Using a protractor and straightedge, construct the refracted light ray in the fused quartz on
the diagram below.
Question: 41
Base your answers on the diagram below, which shows a light ray ( f = 5.09 × 10 14 Hz) in
air, incident on a boundary with fused quartz. At the boundary, part of the light is refracted
and part of the light is reflected.
Using a protractor and straightedge, construct the reflected light ray on the diagram below.