Images in Plane Mirrors

posted Nov 8, 2009, 5:37 AM by Steve Dickie   [ updated Nov 8, 2009, 5:50 AM ]
How much bigger than me does a mirror need to be so that I can see my whole body?

What do we do?
  • Illustrate both with and actual mirror and ray tracing the minimum length of mirror that I need to see my whole body.
  • Show that image distance equals object distance for plane mirrors
  • Demonstrate how two way mirrors work.
  • I got the full length mirror demo from Dr. Peter Hopkinson (he presented it at the 2009 summer meeting of the AAPT)
  • Thanks to Al Gibson and the DMAPT for the two way mirror film
Episode available at iTunesU - Falconphysics Democast Images in Plane Mirrors (iTunes Link)