Light
Name:
1.
Date:
Light travels from medium A where its speed is
2:5 108 meters per second into medium B where
its speed is 2:0 108 meters per second. Compared
to the absolute index of refraction of medium A,
the absolute index of refraction of medium B is
A.
less
B.
greater
C.
3.
The wavelength of the light in air is approximately
A.
2:9
10
7m
B.
3:9
10
7m
C.
5:9
10
7m
D. 7:9
10
7m
the same
4.
Material X could be
A.
2.
C.
The diagram shown represents a ray of
monochromatic light (f = 5:08 1014 Hz) passing
from air to benzene, through material X, and back
into air.
5.
What is the speed of the light in the benzene?
0:50
C.
3:0
108 m=s
108 m=s
2:0
108 m=s
D. 4:5
108 m=s
B.
6.
B.
int glass
water
D. Lucite
Which line represents the path of the light ray
after it reenters the air at point A ?
A.
A.
diamond
1
B.
2
C.
3
Light of wavelength 5:4 10 7 meter shines
through two narrow slits 4:0 10 4 meter apart
onto a screen 2.0 meters away from the slit.
What is the color of the light?
page 1
D. 4
A.
red
B.
orange
C.
green
D. violet
7.
The distance between the bright areas in the
stationary interference pattern formed on the
screen is
A.
1:1
10
10 m
B.
C.
5:4
10
3m
D. 3:7
2:7
10
9.
3m
In the diagram shown, a monochromatic light ray
is passing from medium A into medium B. The
angle of incidence is varied by moving the light
source S. When angle becomes the critical
angle, the angle of refraction will be
102 m
A.
0
B.
C.
greater than , but less than 90
D. 90
8.
In the diagram shown, light ray AO is incident on
a Lucite-air surface at point O. Through which
point will the re ected ray pass?
A.
1
B.
C.
3
D. 4
10.
2
The diagram represents a light ray passing from
corn oil into medium X with no change in velocity.
In this diagram, medium X could be
A.
water
B.
diamond
C.
glycerol
D. alcohol
11.
page 2
Which phenomenon can not be exhibited by
longitudinal waves?
A.
re ection
B.
refraction
C.
di raction
D. polarization
Light
12.
A beam of light crosses a boundary between two
di erent media. Refraction can occur if
A.
the angle of incidence is 0
B.
there is no change in the speed of the wave
C.
the media have di erent indices of refraction
15.
A.
D. all of the light is re ected
13.
14.
B.
C.
7
A ray of light
= 5:9 10
meter traveling in
air is incident on an interface with medium X at
an angle of 30 . The angle of refraction for the
light ray in medium X is 12 . Medium X could be
A.
alcohol
B.
C.
diamond
D.
Which diagram best represents the path of light
rays passing through a glass prism?
D.
corn oil
int glass
The accompanying diagram shows how an observer
located at point P on Earth can see the Sun when
it is below the observer's horizon.
This observation is possible because of the ability
of Earth's atmosphere to
A.
re ect light
B.
di ract light
C.
refract light
D. polarize light
page 3
Light
16.
Base your answer(s) to the following question(s)
on the diagram below which represents a beam
of monochromatic light ( = 5:9 10 7 meter)
traveling from Lucite into air.
17.
In the diagram shown a student stands at
location B, 2 meters in front of a plane mirror. At
which location does the student's image appear to
be?
A.
A
B.
B
C.
C
D. D
What is the measure of the angle of refraction?
[Use a protractor or a mathematical calculation.]
A.
19
B.
30.
C.
49
D. 60.
18.
The speed of light in a material is 2:50 108
meters per second. What is the absolute index of
refraction of the material?
A.
page 4
1.20
B.
2.50
C.
7.50
D. 0.833
Light
19.
Which diagram below best represents the
phenomenon of di raction?
21.
A.
Base your answer(s) to the following question(s)
on the diagram below which shows a ray of
monochromatic light (f = 5:09 1014 hertz) passing
through a int glass prism.
B.
C.
Calculate the angle of refraction (in degrees) of
the light ray as it enters the air from the int
glass prism. [Show all calculations, including the
equation and substitution with units.]
D.
22.
20.
Using a protractor and a straightedge, construct the
refracted light ray in the air on the diagram below.
A monochromatic ray of light (f = 5:09 1014
hertz) traveling in air is incident upon medium A
at an angle of 45 . If the angle of refraction is
29 , medium A could be
A.
water
B.
fused quartz
C.
Lucite
D.
int glass
page 5
Light