Question

why does the coming rays bend in mid point in concave or convex lense..class 10

Answer 1

it goes from denser medium to rarer medium this is also called refraction

Answer 2

A concave lens is thin in The middle and thick at the edges ,so it seems to have inwards.It makes ,or diverge it is thicker in the middle and thinner at the edges.









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Light Ray's passing through a covex lens bend inwards ,or converge............................................