1.

In a laboratory four convex lenses \[{{L}_{1}},\,{{L}_{2}},\,{{L}_{3}}\] and \[{{L}_{4}}\] of focal lengths 2, 4, 6 and 8 cm respectively are available. Two of these lenses form a telescope of length 10 cm and magnifying power 4. The objective and eye lenses are [MP PMT 2001]

A.            \[{{L}_{2}},\,{{L}_{3}}\]    
B.            \[{{L}_{1}},\,{{L}_{4}}\]
C.            \[{{L}_{3}},\,{{L}_{2}}\]    
D.            \[{{L}_{4}},\,{{L}_{1}}\]
Answer» E.


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