Question

A person cannot see objects clearly that are closer than 2 metre and father than 4 metre. To correct the eye vision , the person will use
1. Bifocal lenses of power -3.5 D and 0.25D
2. Bifocal lenses of power -0.25D and 3.5D
3. Bifocal lenses of power -0.5D and 4D
4. Bifocal lenses of power -4D and 0.5D

Answer 1

Answer:

-4D and 0.5 D

Explanation:

see in eye vision book