A person can see clearly objects only when they lie between 50 cm and 400 cm from

A person can see clearly objects only when they lie between 50 cm and 400 cm from his eyes. In order to increase the maximum distance of distinct vision to infinity, the type and power of the correcting lens, the person has to use, will be

Options

(a) convex, +2.25 D
(b) concave, -0.25 D
(c) concave, -0.2 D
(d) convex, +0.15 D

Correct Answer:

concave, -0.25 D

Explanation:

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

admin:

Related Questions

  1. λ₁ and λ₂ are used to illuminate the slits. β₁ and β₂ are the corresponding fringe
  2. In a common emitter (CE) amplifier having a voltage gain G, the transistor
  3. In some region, gravitational field is zero. The gravitational potential
  4. Two balls are dropped from heights h and 2h respectively. The ratio of times
  5. A magnetic force acting on a charged particle of charge -2µC in a magnetic field of 2T