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COMEDK Exam 2019 Solved Paper

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Question : 25

Total: 180

A beam of parallel rays is brought to a focus by a plano-convex lens. A thin concave lens of the same focal length is joined to the first lens. The effect of this is

the focal point shifts away from the lens by a small distance
the focus remains undisturbed
the focus shifts to infinity
the focal point shifts towards the lens by a small distance

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