Question

Sravya's grandfather is unable to read the newspaper clearly. Guess what is the defect of vision he has suggest the lens used to rectify it.? ​

Answer 1

Answer:

it is cuz of old age and the defect is presbyopia

and also called has old age hypermetropia it can be corrected using bifocal lenses which means the upper part consists of concave lens and the lower part consists of convex lens which is used for reading purpose