Question

What is myopia? State the two causes of myopia.
With the help of a labelled ray diagram show
(a) eye defect (6) correction of myopia.
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Answer 1

Answer:

A condition in which closed object appears clearly but far ones not.

Explanation:

Causes of myopia: the protective outer layer of your eye -- is too curved, the light that enters your eye won’t focus correctly.

Answer 2

Answer:

MYOPIA is A kiind of defect in which a person is unable to see the object clearly.

the far point of myopia is less than infinity.

this is caused by two ways:-

i.) due to high converging of lens

or we can say

short f

ii.)due to eyevball being too large

MYOPIA is corrected by the spectacles containing concave lens.

Concave lens is used to reduce the converging power of eye lens

so the f is increased and person can see the far point clearly.

sorry but i am unable to attach pic of diagram

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