What is a Concave and Convex lens?
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A convex lens is thicker at the centre and thinner at the edges. A concave lens is thicker at the edges and thinner at the centre. Due to the converging rays, it is called a converging lens. Due to the diverging rays, it is called a diverging lens.
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Convex lens
A convex lens is thick in the middle and becomes thinner at edges.
Concave lens
A concave lens is thin in middle and thick at edges.
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