Question

What do you mean by the defect myopia, give its causes. Also draw the ray diagram for the defected eye and corrected eye.​

Answer 1

Explanation:

Myopia is a defect of vision in which a person clearly sees all the nearby objects, but is unable to see the distinct object comfortably and his eye is known as myopia eye. A myopic eye has its far pint near that infinity. It forms the image of an distinct object in front of the retina as shown in the figure A.

Myopia can be caused by

1. increase in curvature if the lens.

2. increase in the length if the eye ball.

Since concave lens has an ability to diverge incoming rays, it us used to correct this defect of vision. The image is allowed to form at thee retina by using a concave lens of suitable power as shown in the figure B

solution

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