Question

Focal length of a convex lene is 20cm. it's power is:

50 points​

Answer 1

Answer:

good morning my dear friend and love hope aap thaik ho halo my

Answer 2

Given , Focal length (f) = 20 cm = 0.2 m

$Power = \frac{1}{focal \: length\: in \: m}$

$Power = \frac{1}{0.2}$

Power = 5 D