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!

Reflection in an elipse

  1. Aug 21, 2015 #1
    I needed the proof of this:if a ray of light passes from one focus of an elipse after reflection it will pass the other focus.please i need the one only using the fact that i=r ( not the fermat rule)
     
  2. jcsd
  3. Aug 21, 2015 #2

    RUber

    User Avatar
    Homework Helper

    In reference to the attached image, what do you know about length of segment d2 compared to the distance 2*c between the foci?
    541px-Ellipse_derivation_1.svg.png
     
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: Reflection in an elipse
  1. Reflecting in mirror (Replies: 5)

  2. Optics (Reflection) (Replies: 6)

Loading...