Multiple choice

The lens used to correct long site is

  1. plane lens

  2. convex lens

  3. concave lens

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Long sight (hyperopia) occurs when the eyeball is too short or the cornea has too little curvature, causing light to focus behind the retina. A convex lens converges light rays before they enter the eye, moving the focal point forward onto the retina. Concave lenses are used for myopia (short sight), while plane lenses have no optical power.

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