Question

The far point of a myopic person is 80cm in front of the eye.what is the nature and power of the Lens required to correct the problem

Answer 1

myopia is corrected by concave lens. focal length of the lens will be given by lens formula:

Answer 2

Answer:

$\sf P=\dfrac{1}{f}\\\\\sf P=\dfrac{1}{(-0.8 m)}\\\\\\\sf P=-1.25 \ D$