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?
A.	-15, 10
B.	-10, 15
C.	75, 50
D.	-75, 50
Answer» B. -10, 15

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