State two main differences between a convex and concave lens.
|Convex lens||Concave lens|
|1. A convex lens is thicker in the middle and thinner at its edges.||1. A concave lens is thicker at the edges and thinner in the middle.|
|2. A light beam converges on passing through a convex lens.||2. A light beam diverges on passing through a concave lens.|
Concept: Convex Lens
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