A person has a minimum distance of distinct vision as 50 cm. The power of lenses

A person has a minimum distance of distinct vision as 50 cm. The power of lenses required to read a book at a distance of 25 cm is

Options

(a) 3 D
(b) 1 D
(c) 2 D
(d) 4 D

Correct Answer:

2 D

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. The current in the windings of a toroid is 2.0 A. There are 400 turns
  2. The moment of inertia of a rod about an axis through its centre and perpendicular
  3. A block of mass 5 kg is moving horizontally at a speed of 1.5 m/s. A perpendicular force
  4. The Davisson- Germer experiment is the direct evidence of
  5. Water rises to a height h in capillary tube. If the length of capillary tube above