Question

A man’s near point is 0.5 m and far point is 3 m.
Power of spectacle lenses required for (i) reading
purposes, (ii) seeing distant objects,
respectively, are
(a) –2 D and + 3 D (b) +2 D and –3 D
(c) +2 D and –0.33 D (d) –2 D and + 0.33 D

Answer 1

Answer:

they respectively are -2D & +3D