Question

The nearer point of hypermetropic eye is 40 cm. The lens to be used for its correction should have the power:

• A.
  • 1.5 D
• B.
  • 1.5 D
• C.
  • 2.5 D
• D.
  • 0.5 D

Answer 1

Answer: (C)

• 2.5 D

Answer 2

: Heypermetropia is corrected by using convex lens.

Focal length of lens usedf = + (defected near point) F

=+ d = + 40 cm

$\therefore$Power of lens