1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Lenses homework problem

  1. May 19, 2004 #1
    An object pin is placed 20cm in front of a convex lens which is 10 cm away from a plane mirror . An inverted image is found at the same position of the object(above the object).
    What is the focal length?
    thanks
     
  2. jcsd
  3. May 19, 2004 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Here are a few hints. Is the image formed by the lens real or virtual? What does a plane mirror do?

    Figure out where the image would be if the mirror wasn't there.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Similar Discussions: Lenses homework problem
  1. Two Lenses Problem (Replies: 0)

Loading...