Question

Calculate the power of lens whose focal length is 1 m

Answer 1

Answer:

Answer is 1 m

Explanation:

The power of a lens is defined as the reciprocal of its focal length in meters, or D = 1/f

D = 1/1

D = 1 m

Answer 2

Answer:

Focal length = 1m

Power = 1/f

= 1/1 D

= 1 D