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Ch. 19-Part 2
Test Description: Light, Mirrors, and Lenses
Instructions: Answer all questions to get your test result.
1) An object which only allows some light to pass through.
A
rough
B
opaque
C
transparent
D
translucent
2) An object which allows all light to pass through.
A
rough
B
translucent
C
transparent
D
opaque
3) An object that allows no light to pass through.
A
rough
B
transparent
C
opaque
D
translucent
4) A surface mirror that is curved inward.
A
translucent
B
plane
C
convex
D
concave
5) A surface mirror that is curved outward.
A
plane
B
convex
C
concave
D
translucent
6) Causes light rays to come together or converge.
A
translucent
B
plane
C
convex
D
concave
7) Causes light rays to spread away from each other or diverge.
A
translucent
B
convex
C
plane
D
concave
8) A straight line drawn perpendicular to the concave/convex mirror.
A
focal axis
B
focal point
C
focal length
D
optical axis
9) A single point on the optical axis.
A
optical emphasis
B
focal axis
C
focal point
D
optical point
10) The length of the focal point to the concave/convex mirror.
A
axis length
B
focal length
C
optical length
D
focal emphasis
*select an answer for all questions
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