Question

What is concave and concave lens? Explain with diagram​

Answer 1

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Concave Lens -> Thick at periphery and light rays diverge after passing through.

Convex Lena -> Thick at middle and light rays converge after passing through.

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Answer 2

Answer:

The lens which merges the light rays at a particular point, that travels through it, are a convex lens. The lens which disperses the light rays around, that hits the lenses, are called a concave lens. In the convex lens, the curve is outward facing, whereas, in the concave lens, the curve faces inward.