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2014-07-24T11:46:38+05:30

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Differences are :

i) Convex lens are thicker at the middle than at the edges; whereas concave lens are thinner in middle than at edges.

ii) Convex lens converge light rays; whereas concave lens diverge light rays.

iii) Convex lens form virtual, erect & magnified image; whereas concave lens form virtual, erect & diminished image.
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2014-07-24T12:10:18+05:30
Convex-
*also called converging lens
*thick

Concave-
*diverging lens
*thin
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