Question

power of convex lens of focal length 25cm is​

Answer 1

Power = 1/focal length

F in meters = 25/100

F= 1/4

P=1/(1/4)

P=4D

Mark it the best plz

Answer 2

Answer:

+4 D

Explanation:

P= 1/f

f=25cm=0.25m

P=1/0.25= 4D

So the power of the lens is +4 D.