Question

(3)
Differentiate between concave and convex lens on the basis of the
following points :
(i) Thickness of the lens.
(ü) Nature of the principal focus.
(iii) Focal length.​

Answer 1

Answer: a convex lenses is thicker in the middle and thinner in the edges whereas concave lenses are

thinner in middle and thicker in the edges

Explanation:

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