Reflection and 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.
6 ft behind the girl
b.
4 ft behind the girl
c.
10 ft behind the girl
d.
5 ft behind the girl
Hint
2.
Your image in a bathroom mirror results from __________.
a.
specular refraction
b.
diffuse refraction
c.
diffuse reflection
d.
specular reflection
Hint
3.
__________ is located behind a convex mirror.
a.
The focal point
b.
A real image
c.
The object
d.
A ray
Hint
4.
If you wanted to adjust the situation in Figure 17-13 to produce a real image, which one of the following options by itself would work?
a.
replace the mirror with a convex mirror of the same focal length
b.
replace the object with a larger object.
c.
replace the mirror with another concave mirror of longer focal length
d.
move the object out past the focal point
Hint
