Worksheet
Spherical Mirror Equation #1
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Refer to the following information for the next four questions.
A paperclip 2.5 cm tall is placed 30 cm from a concave mirror which has a radius of curvature of 30 cm.
1.
True or False?
A virtual image of the paperclip will be formed by the mirror.
True
False
2. The actual position of the image is
3. Which statement correctly describes the image formed in question #1?
real, inverted, enlarged
real, inverted, reduced
real, inverted, equal in size
4. Which of the three classic rays from the resource lesson is impossible to draw?
Refer to the following information for the next three questions.
A child holding a silver serving spoon 16 cm from his face looks into its convex surface and sees a reduced image of his face "in the spoon."
5. If his face appears to be one-fourth as large as it would in a normal plane mirror, where is the image formed?
4 cm behind the mirror
12 cm behind the mirror
6. Is the image upright or inverted?
7. What is the focal length of the spoon?
3.2 cm
4.0 cm
-0.185 cm
-5.3 cm
Refer to the following information for the next two questions.
A virtual image is formed 30 cm from a concave mirror when an object is located 10 cm in front of the mirror.
8. What is the focal length of the concave mirror?
-15.0 cm
-7.5 cm
+7.5 cm
+15.0 cm
9. What is the magnification of this image?
Refer to the following information for the next two questions.
A 3-meter tall truck is driving behind your car and is located 8 meters from your convex rearview mirror.
10. If the mirror has a radius of curvature of 80 cm, find the position of the image.
- 0.38 m
- 0.40 m
- 0.42 m
11. How tall is the image formed in the mirror?
Refer to the following information for the next three questions.
A 0.75-meter tall coffee table produces an image 0.25 meters high when the table is located 12 meters in front of a concave mirror.
12. Is the image real or virtual?
13. Where is the image formed?
0.25 m
4 m
36 m
cannot be determined without more information
14. What is the focal length of the mirror?
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