Question

PLEASE ANSWER.The power of a lens is -1.5 D what is the nature of this lens? (Pls explain elaborately tmrw is my exam)

Answer 1

Answer:

The lens is a concave one. That is it is diverging

Explanation:

Since power is in negative,

Power of lens =1/focal length

> focal length=1/power of lens

=1/-1.5

=-0.6667 m

Since focal length negative,too, nature of lens is diverging