Physics > 2008 > 34
JAMB UTME
If a convex lens of focal length 12cm is used to produce a real image four times
the size of the object, how far from the lens must the object be placed?
the size of the object, how far from the lens must the object be placed?
A.
10cm
B.
15cm
C.
20cm
D.
25cm
Answer: B
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