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13 August, 00:26

Which one of the following is thick in the middle and thin at the edges?

a. concave lens

c. concave mirror

b. convex lens

d. plane mirror

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Answers (1)
  1. 13 August, 03:31
    0
    B. A convex lens is thick in the middle and thin at the edges. If it's concave, it's thin in the middle and thick at the edges.
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