Question on: WAEC Physics - 1992

A real image of an object fom1ed by a converging lens of focal length 15cm is three times the size of the object. What is the distance of the object from the lens?
A
30cm
B
25cm
C
20cm
D
15cm
Ask EduPadi AI for a detailed answer
Correct Option: C
1/u + 1/3u = 1/15; u = 20cm

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