Optics: Image Distance and Focal Length Sign Conventions
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Last updated 12:55 AM on 11/18/25
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10 Terms
1
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Positive focal length if
converging lens (convex lens) or mirror (concave mirror).
2
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Neg focal length if
diverging lens (concave lens) or mirror (convex mirror).
3
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Image distance pos
If real
4
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Image distance neg
If virtual
5
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μ
10^-6
6
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m
10^-3
7
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c
10^-2
8
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k
10^3
9
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G
10^9
10
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M
10^6
Note 
Flashcards (56)