1.

In a simple microscope, if the final image is located at infinity then its magnifying power is            [MP PMT 2004]      

A.            \[\frac{25}{f}\]                    
B.            \[\frac{D}{26}\]
C.            \[\frac{f}{25}\]                    
D.            \[\frac{f}{D+1}\]
Answer» B.            \[\frac{D}{26}\]


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