Question

if f=30cm what is the power of lens​

Answer 1

Answer:

p=33.3m

Explanation:

f =30

formula of p=1/f

p=1/30

p=0.0333cm

p=33.3 m

Answer 2

Answer:

f=30 cm (given)

f=30/100 m

f=0.3 m

power of lens = 1/f

Power = 1/0.3

power = 10/3

power of lens= 3.33 D