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denniswalker510

Answer:

A concave lens is thinner at the center and thicker at the edges while a convex lens is thicker at the centre and thinner at the edges.

KaylaSm1th

Answer:

Read below.

Explanation:

Convex lenses: have a thicker centre than their edges. Converges light rays to a point.

Concave lenses: have thicker edges than their centre. Diverges the light rays passing through it.

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