1.

If the focal length of objective and eye lens are 1.2 cm and 3 cm respectively and the object is put 1.25 cm away from the objective lens and the final image is formed at infinity. The magnifying power of the microscope is 

A.            150                                           
B.            200 
C.            250                                           
D.            400 
Answer» C.            250                                           


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