Question

Question #3b874

Answer 1

`f = 0.16" m"`

Explanation:

The Power of a lens is the inverse of the focal length when describing thin lens. It is measured in diopters. Optometrists use power lens to prescribe glasses to patients.

![https://useruploads.socratic.org/Yjpo6xIcQ7CP7h0qUz7X_focalength.gif)
The relationship is seen from the following:

`"Power" = (1/f)`

Where
`f = "focal length (m)"`

`color(white)(---)`

To find the focal length, isolate f, plug in and solve

• `P = (1/f)`

• `6 = (1/f)`

• `f = (1/6)`

• `f = 0.16" m"`

`"Answer": f = 0.16" m"`