Question

myopia is corrected by

Answer 1

Answer : Bi Concave lens

Explanation :

Myopia, Also Called Near sightedness, is a eye defect in which the patients are not able to see objects at long distances clearly.

Persons who are myopic, has their eye lens maximum value decreased. Usually, Eye lens can change its focal length from 2.24 cm to 2.5cm . So ,In myopic patients , farther objects image cant be formed on the retina.

To correct this defect , A biconcave lens is used .

The Focal length of the lens to be used is
f = -D ( where D is the far or myopic point )

Hope helped !

Answer 2

Answer:

Concave lens are used.

Explanation: