Optics Question 664

Question: A convex lens produces a real image m times the size of the object. What will be the distance of the object from the lens

[JIPMER 2002]

Options:

A) (m+1m)f

B) (m ?1)f

C) (m−1m)f

D) m+1f

Show Answer

Answer:

Correct Answer: A

Solution:

m=ff+u⇒−m=ff+u⇒u=−(m+1m)f

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