An object has image thrice of its original size when kept at 8 cm and 16 cm from a convex lens. Focal length of the lens is
Text Solution
Verified by ExpertsThe correct answer is:
C
m = ± ± 3, using 
For virtual image 
.....(i)
For real image 
.....(ii)
Solving (i) and (ii) we get 
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