An object has an 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:
D
Magnification, 
We have, 
For virtual image, 
… ..(i)
For real image, 
…… (ii)
Solving Eqs. (i) and (ii), we get
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