Question

name the type of the lens if itspower is -2.0D. find the focal length of this lens. ​

Answer 1

concave lens

focal length = 1/p

= 1/-2.0

=-0.5m

=-50cm

concave lens because power is negative.

Answer 2

Answer:it's concave

Explanation:cause the answer u get is in negative.. hence it's concave....