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!

Focal length of a plane glass

  1. Oct 12, 2014 #1
    1. The problem statement, all variables and given/known data
    what is the focal length of a plane glass ?

    2. Relevant equations


    3. The attempt at a solution
    place a plane glass in a plane and allow light to pass through it measure its focal length
    (i think its focal length is infinite )
     
  2. jcsd
  3. Oct 12, 2014 #2

    BvU

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Hello Hafiz, and welcome to PF.
    This is homework of the kind that lets you think instead of calculate. You think its infinite, which is more or less a result. How do you come to this conclusion ?
     
  4. Oct 12, 2014 #3
    You are correct Hafiz, the focal length of a plane mirror is near to infinite. That's why we say that the power of ZERO.
    But we encourage you to write the methodology of deriving solution while posting a question. It help other a lot to understand the correct question.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Focal length of a plane glass
  1. Focal length (Replies: 2)

  2. Focal length (Replies: 1)

Loading...