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- 1. Multiple Choice
An image behind the mirror is...
virtual
real
inverted
upright
- 2. Multiple Choice
An image that points below the principal axis is (choose 2)...
virtual
real
upright
inverted
- 3. Multiple Choice
This image is showing a convex mirror because the image is (choose 2 answers)
real light rays meet behind the mirror
real light rays don't meet
the focal point is in front of the mirror
the focal point is behind the mirror
- 4. Multiple ChoiceConvex Mirrors produce...only virtual imagesvirtual or real imagesonly real imagesinverted images
- 5. Multiple Choice
A dentist uses a small dental mirror to help magnify teeth in your mouth. What type of mirror is this?
a convex mirror
a concave mirror
a convex lens
a concave lens
- 6. Multiple Choice
This type of mirror is used in supermarkets to see around bends
concave
convex
plane
window
- 7. Multiple Choice
An image that forms when light rays actually meet
virtual image
real image
diffuse reflection
regular reflection
- 8. Multiple Choice
Virtual images are
always upright
can be obtained on screen
always smaller
- 9. Multiple ChoiceConcave mirrors can create virtual and real images.TrueFalse
- 10. Multiple ChoiceConvex mirrors can create real images.TrueFalse
- 11. Multiple Choice
An object is at a distance of 36cm from a concave mirror of focal length 12 cm. Find the image distance
18cm
-18cm
12 cm
-12 cm
- 12. Multiple Choice
If light travels from a lower to a higher index of refraction medium the light will
bend away from the normal line
bend closer to the normal
not bend
answer is not here
- 13. Multiple Choice
A higher index of refraction means that the wave travels _____________ the speed of light in a vacuum in that medium.
Faster than
Slower than
Equal to
Answer is not here
- 14. Multiple Choice
Light travels from air (n = 1.000) into an optical fiber. If the angles of incidence and refraction are 22oand 15º respectively. what is the index of refraction inside the fiber? Round off your values to 3 sig. figs.
1.45
1.44
0.69
0.70
- 15. Multiple Choice
The index of refraction, is defined as the ratio of the speed of light in a vacuum (c = 3x10^8 m/s) to the speed of light in a medium. What is the index of refraction of a medium where the speed of light is 0.7c ? Round off your values to 3 sig. figs.
1.42
1.43
1.28
1.29
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