If two + 5 D lenses are mounted at some distance apart, the equivalent – McqOptions

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1.	If two + 5 D lenses are mounted at some distance apart, the equivalent power will always be negative if the distance is [UPSEAT 2002]
A.	Greater than 40 cm
B.	Equal to 40 cm
C.	Equal to 10 cm
D.	Less than 10 cm
Answer» B. Equal to 40 cm

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