Give reasons: A concave lens is used to correct myopia.

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Solution

In a myopic eye, the image of a distant object is formed in front of the retina and not at the retina itself. A concave(diverging) lens causes light rays to diverge before they strike the lens of the eye so that the image is formed on the retina. Hence, a concave lens is used to correct myopia.

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Similar questions

Give reasons:

(1) You cannot enjoy watching a movie from a very short distance from the screen in a cinema hall.

(2) A simple microscope is used by watch repairers.

(3) A concave lens is used to correct myopia.

(4) In gold age bifocal lens is necessary for some person.

(5) Concave mirrors are used in solar devices.

Statement1: Myopia is corrected by the use of the concave lens.
statement 2: In myopia, the converging power of eye lens increases.

10 c m

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