1. Limited time only! Sign up for a free 30min personal 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!

Minimum widths of the mirrors

  1. Jul 31, 2013 #1
    1. The problem statement, all variables and given/known data
    A periscope is made of two good mirrors. Find the ratio of the minimum widths of the mirrors if the distance between them is L and the distance from the lower mirror to the eye of the observer is l.The objects viewed through the periscope are at a great distance from it.


    2. Relevant equations



    3. The attempt at a solution
    We can straighten the tube and consider a single straight tube because the function of the mirror is only to deviate the path of rays so that the object at higher position can be seen from lower position.
    The answer to this question is (L+l)/l. Explain the solution of this question.
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Jul 31, 2013 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    hi ananya17! welcome to pf! :smile:

    pretend that they're windows :wink:
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted