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what is concave and convex lens ? Difference of the both.

Convex lens

 A convex lens is made by joining two spherical surfaces in such a way that it is thicker at the centre. Its thickness gradually reduces as we move towards the edge.

A convex lens has the ability to converge the light rays to a point that are incident on it. Thus, it is called a converging lens.

Concave lens 

A concave lens is made by joining two curved surfaces in such a way that it is thinner at the centre. Its thickness gradually increases as we move towards the edge.

A concave lens has the ability to diverge a beam of light rays incident on it. Thus, it is called a diverging lens.

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 a concave lens is thinnest in its middle (the point where the line between the two focal points intersects the lens (at right angles to the plane of the lens).

A convex lens is thickest in its middle.


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 a lens which is thinner in the middle and thicker at the edges is called concave lens.

a lens which is thicker in the middle and thinner at the edges is called convex lens.

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mine is more aloberated

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