alleryIn the mirror formula 1/v + 1/u = 1/f, what does u represent?
AImage distance from pole
BObject distance from pole
CFocal length
DRadius of curvature
Answer & Solution
Correct answer: B. Object distance from pole
1. The mirror formula relates v, u and f.
2. u is the object distance, measured from the pole.
3. v is the image distance and f the focal length.
_Source: syllabus Science, Ch 9 "Light Reflection and Refraction", §9.2.4_
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