Question

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

Answer 1

Answer:

Power is Negative because it is a Concave lens

P = 1/f

P = 1/2 = -0.5Diaptore

Thanks for Reading

Answer 2

Answer:

0.5D

Explanation:

P=1/f(m)

P=1/2

P=0.5D