Question

Find the powar of a conver lens of focal length 2(two) metar?​

Answer 1

Focal length =2m

Power of lens = 1 / focal length

=1/2

=+0.5D

Explanation:

i hope that it will help u

Answer 2

Answer:

-½ = 0.5D

Explanation:

As it is a concave lens then focal length will be negative,So

f = -2

P = 1/f

= -½

= 0.5D

Therefore, power of the concave lens = -½