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Question : 37

Total: 150

There are four lenses L1,L2,L3 and L4 of focal lengths, 2,4,6 and 8cm respectively. Two of these lenses form a telescope of length 10cm and magnifying power 4 . The objective and eye lenses are

L2,L3
L1,L4
L3,L2
L4,L1

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