A doctor has prescribed a corrective lens of power +1.5D. Find the focal length of the lens. Is the prescribed lens diverging or converging?


P = +1.5 D

Find out

We need to find out the focal length of the given lens


We know that

f = 1/P


f is the focal length

P is power

f = 1/P

= 1/+1.5 = 0.67 m.

As the power of the lens is (+ve), the lens is converging.

Was this answer helpful?


4.5 (41)

Upvote (70)

Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.

1 Comment

  1. Thanks for solution

Leave a Comment

Your Mobile number and Email id will not be published. Required fields are marked *




Free Class