Section 17.1
Reflection from Plane Mirrors
Practice Test
1.
If in Figure 17-4 the image of the lamp is 5 ft behind the mirror and the girl is 1 ft in front of the mirror, where is the lamp?
a.
5 ft behind the girl
b.
10 ft behind the girl
c.
6 ft behind the girl
d.
4 ft behind the girl
Hint
2.
Your image in a bathroom mirror results from __________.
a.
diffuse reflection
b.
diffuse refraction
c.
specular refraction
d.
specular reflection
Hint
3.
Which statement about the light rays in Figure 17-5 is true?
a.
The image of the bird creates light rays.
b.
The light originates from the boy's eyes.
c.
The light originates from the bird's image.
d.
The light originates from the bird.
Hint
4.
You are standing in front of a bathroom mirror. Where is your image located?
a.
behind the mirror
b.
between you and the mirror
c.
behind you
d.
in front of the mirror
Hint
5.
In Figure 17-6, if the flame on the candle is 2 cm tall, how tall is the flame of the image?
a.
1 cm
b.
2 cm
c.
4 cm
d.
8 cm
Hint
6.
How does light normally travel?
a.
in a curved line
b.
in concentric circles
c.
always toward a dark area
d.
in a straight line
Hint
7.
The line perpendicular to the reflective surface is the __________.
a.
line of refraction
b.
line of incidence
c.
normal
d.
line of reflection
Hint
