Draw labelled ray diagrams to illustrate the differences between the virtual
images formed by using (a) a concave lens (b) a convex lens.
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Answer:
con
Explanation:
convex lens
it is thicker in the middle than at edges
it produces mostly real images
it helps to treat myopia
convex lens
it is thinner in the middle than at edges
it produces mostly vritual images
it helps to treat hypermetropia
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