A man with defective eyes cannot see distinctly object at the distance more than from his eyes. The power of the lens to be used will be |
|||||||
a) |
b) |
c) |
d) |
A man with defective eyes cannot see distinctly object at the distance more than from his eyes. The power of the lens to be used will be |
|||||||
a) |
b) |
c) |
d) |