Question

17
A doctor bas prescribed a corrective lens of power +1.5 D. Find the local lenghe
lens is the prescribed lens diverging or converging​

Answer 1

$power = \frac{1}{f} \\ 1.5 = \frac{1}{f} \\ so \: f = \frac{10}{15} = 0.6m \\ = 60cm$

As the focal leanght is positive the lens is convex lens I. E. Converging.

Hope it helps. ❤️❤️