Distinguish between concave and convex 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.|
|3. The convex lens produces a real image that is inverted and is smaller and can be obtained on screen.||3. A concave lens always forms a virtuall image, the image is magnified and cannot be obtaiined on screen.|
Concept: Concave Lens
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