Question

concave lens is used to correct i) Myopia ii) presbyopia iii) Hypermetropia iv) Cataract

Answer 1

1) Myopia - concave lens

2) Presbyopia - bi-focal lenses

3) Hypermetropia - convex lens

4) Cataract - cataract is restore by cataract surgery

Answer 2

It is absolutely myopia...

Simple..

As you get clarified about myopia it is simple to answer.

Generally,myopia is nothing but nearsightedness.means a person with myopia can see nearby objects clearly but cannot see distant objects clearly.

Now, easily we can say that..

A concave lens is suitable power for myopia disease....

Hope it will help you more...