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Draw labelled ray diagrams to illustrate the differences between the virtualimages formed by using (a) a concave lens (b) a convex lens. |
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Answer» Answer: con Explanation: 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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