Physics

Physics

Problem

A convex lens is in contact with concave lens. The magnitude of the ratio of their focal length is 2/32/3 . Their equivalent focal length is 30 cm. What are their individual focal lengths? a. −15,10-15, 10 b. −10,15-10, 15 c. 75,5075, 50 d. −75,50-75, 50

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