Question

lens.
3.
Find the power of a concave lens of focal length 2 m.​

Answer 1

Answer:

p=1/f

f=2

p=1/2=

-0.5d

Explanation:

Answer 2

Answer:+

-0.5Dioptre

Explanation:We know

Power of lens =1/focus

So. Power of lens = 1/-2

=-0.5D

Hope this helps