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Common Defects of the Eye

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Question

Have a look at the posture of this girl who is reading a book and answer the questions which follow :
(a) Name the problem she is facing
(b) What are the two conditions shown in sections A and B of the eye as applicable to her.
(c) What kind of reading glasses does she need?

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Solution

(a) Myopia
(b) A-Hyperopia, B-Myopia
(c) Looking glasses with the concave lens are required here.

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Q. A lady cannot see objects closer than

40 cm

from the left eye and closer than

100 cm

from the right eye. On a mountaineering trip, she is lost from her team. She tries to make an astronomical telescope from her reading glass. What is the magnification of this telescope for a relaxed eye?

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Common Defects of the Eye

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