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(c) (ii) Two lenses are placed in contact. One is a concave lens with focal length $$\begin{aligned}& 2 \\ & \text{m}\end{aligned}$$ and the other is a convex lens with focal length $$\begin{aligned}& 1.5 \\ & \text{m}\end{aligned}$$. What type of lens will the combination behave as (convex or concave) ? Give reason.
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