For the correction of which of the following optical defects are convex lenses used?

Options :
  1. Astigmatism
  2. Short sightedness
  3. Cataract
  4. Long sightedness
Answer and Explanation :-

Answer: Option 4

Explanation:

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The library is full of stories of supposed triumphs which makes me very suspicious of it. It's misleading for people to read about great successes, since even for middle-class and upper-class white people, in my experience, failure is the norm
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