Question

a person having a Myopic eyes used a concave lens of focal length 50 cm what is a power of the lens​

Answer 1

Explanation:

focal length of concave lens is negative

Focal length of lens is −50cm=−0.5m

P= 1/f

1/-0.5

=−2D

Since the focal length of lens is negative its myopic defect .Lens is diverging in nature.