(A) Convex lens (X)
(B) Concave lens ()
(C) Convex-concave lens (X)
(D) Concave-convex lens (X)
Answers: Short-sightedness can be corrected by using Concave lens.
(A) Convex lens (X)
(B) Concave lens ()
(C) Convex-concave lens (X)
(D) Concave-convex lens (X)
Answers: Short-sightedness can be corrected by using Concave lens.
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