A convex lens is in contact with concave lens. The magnitude of the ra – McqOptions

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1.	A convex lens is in contact with concave lens. The magnitude of the ratio of their focal length is 2/3. Their equivalent focal length is 30 cm. What are their individual focal lengths [IIT-JEE (Screening) 2005]
A.	? 75, 50
B.	? 10, 15
C.	75, 50
D.	? 15, 10
Answer» E.

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