1.

A convex lens of focal length \[f\] produces an image \[\frac{1}{n}\] times than that of the size of the object. The distance of the object from the lens is         [BHU 1997; JIPMER 2001, 02]

A.            \[nf\]                                      
B.            \[\frac{f}{n}\]
C.            \[(n+1)\,f\]                           
D.            \[(n-1)\,f\]
Answer» D.            \[(n-1)\,f\]


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