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- 1. Multiple Choice
The focal length of a spherical mirror is _____ the radius of curvature of the mirror.
twice
half
the same
unrelated to
- 2. Multiple Choice
What type of image is produced by a convex mirror?
enlarged (bigger) and real
reduced (smaller) and virtual
enlarged and virtual
reduced and real
- 3. Multiple Choice
Light from a laser strikes a plane mirror at an angle of 38 degrees to the normal. If the angle of incidence increases by 13 degrees what is the new angle of reflection?
38 degrees
51 degrees
65 degrees
84 degrees
- 4. Multiple Choice
A concave mirror has a 7 cm focal length. You place a 2.4 cm tall object 16 cm from the mirror. Determine the image height.
7 cm
4 cm
-1.9 cm
-3.5 cm
- 5. Multiple Choice
Under which conditions does a concave mirror produce an enlarged virtual image?
Never
When the object is farther away than the focal point
When the object is farther away than the radius of curvature
When the object is between the focal point and the mirror
- 6. Multiple Choice
You place an object 20 cm in front of a convex mirror with a –15 cm focal length. Calculate the image position
9.45 cm
5.34 cm
-4.35 cm
-8.57 cm
- 7. Multiple Choice
If xi = -xo, then what is the meaning of the negative sign?
The image is inverted
The image is virtual
The image is smaller
The image is larger
- 8. Multiple Choice
What is the size and position of an image formed by a plane mirror?
same size, closer to the mirror
same size, same distance away from the mirror
enlarged, closer to the mirror
reduced, farther from the mirror
- 9. Multiple Choice
Identify whether the following statement is true or false: “Virtual images are formed from divergent (scattered) rays.”
True
False
- 10. Multiple Choice
This is an example of a _________ mirror
Concave
Convex
Magnifying
Plane
- 11. Multiple Choice
In diffuse reflection, why are the reflected rays not parallel to each other?
because the light is of various wavelengths
because this only happens in plane mirrors
because the incident rays are not parallel
because the surface is not smooth
- 12. Multiple Choice
Where is the object located if the image that is produced by a concave mirror is SMALLER than the object?
at the mirror’s focal point
between the mirror and the focal point
between the focal point and center of curvature
outside the center of curvature
- 13. Multiple Choice
If the flame on the candle is 2 cm tall, how tall is the flame of the image?
1
2
4
8
- 14. Multiple Choice
Which terms describe the reflection seen in this image?
virtual, upright
virtual, inverted
real, upright
real, inverted
- 15. Multiple Choice
Which of the following mirrors have a focal point?
Plane mirrors only
Concave mirrors only
Plane, convex and concave mirrors
Convex and concave mirrors only
- 16. Multiple Choice
Outside rear-view mirrors on automobiles are generally ____.
concave
convex
plane
magnifying
- 17. Multiple Choice
If an image in a curved mirror is virtual, you can say that the mirror is:
Definitely concave
Definitely convex
Could be concave or convex
- 18. Multiple Choice
If the heigh of the image is a negative number, this means it is:
Upright
Real
Virtual
Inverted
- 19. Multiple Choice
A concave mirror has a radius of curvature of 24 cm. A 6.4 cm tall object is held 26cm from the mirror. Calculate the distance between the image and the mirror.
22.3 cm
23.2 cm
32.2 cm
23.3 cm
- 20. Multiple Choice
A concave mirror has a focal length of 12 cm. A 6.4 cm tall object is held 26cm from the mirror. The distance from the image to the object is 22.3 cm. What is the height of the image.
-5.5 cm
3.3 cm
5.5 cm
-3.3 cm
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