What is long-sightedness? What type of lens is used to remedy this defect? [2+1]
WBBSE
Class X
Physical Science
Light – Reflection and Refraction
03 Mark
2022
Long-sightedness, also known as hypermetropia, is a vision defect in which a person can see distant objects clearly but has difficulty focusing on nearby objects. This happens because the image of close objects is formed behind the retina instead of directly on it, often due to a shorter-than-normal eyeball or a less curved cornea.
To correct long-sightedness, a convex lens is used.
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