Which lenses are used by people having short-sightedness?
Correct answer: B. Concave
- A. Convex
- B. Concave
- C. Concavo-convex
- D. Plain
Explanation
Short-sightedness, or myopia, focuses distant images in front of the retina. A concave lens spreads incoming rays slightly so the eye can focus them on the retina.
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