1.

The magnifying power of an astronomical telescope is 8 and the distance between the two lenses is 54 cm. The focal length of eye lens and objective lens will be respectively [MP PMT 1991; CPMT 1991; Pb. PMT 2001]

A.            6 cm and 48 cm                   
B.            48 cm and 6 cm  
C.            8 cm and 64 cm                   
D.            64 cm and 8 cm  
Answer» B.            48 cm and 6 cm  


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