Question

The power of a convex lens of focal length 25cm is _ _ _ _​

Answer 1

250 Millimeter is the answer!

Answer 2

Answer : converging

Explanation: The power of lens is always the reciprocal of the focal length of the lens

Focal length of the lens = f= 25cm= 0.25m

so, power of the lens= 1/f

P = 1/0.25

P= 4D

since, power of the lens is positive which shows

the lens is converging lens

hope it helps