Question

name the type of lens if its power in +2x find its focal length​

Answer 1

Answer:

convex lens and it's focal length is 50cm

Answer 2

It is a convex lens because the power is in positive the power is in positive indicates that the focal length must be in positive so it is a convex lens

P= 1/f

2=1/f

f=1/2

f=0.5m