what is meant by concave and convex lens
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Concave lens is thinner at the middle and thicker at the edges. Convex lens is thicker in the middle and thinner at the edges. It is a diverging lens. It is a converging lens.
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Concave lens is thinner at the middle and thicker at the edges.
Convex lens is thicker in the middle and thinner at the edges. It is a diverging lens. It is a converging lens. It is used as spy holes in doors, in optical instruments(telescope).
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