Reflection Of Light

• bonkysleuth

  22 Sep 07, 16:40

  Two plane mirrors are supported with their surfaces at right angles and a small object is placed between them. How many reflected images of this object can be seen in the mirrors?
  
  My guess is 2. But i'm not that sure about this. Please help.
  
  Thanks!
• ^tamago^

  22 Sep 07, 16:48

  http://sgforums.com/?action=forum_display&forum_id=2297
• blahshit

  22 Sep 07, 19:19

  i think it's 3.. go read ur physics textbook.. i am sure its written inside..
• MARK1992

  22 Sep 07, 19:29

  it is 3..tsktsk
• bonkysleuth

  22 Sep 07, 20:09

  Originally posted by MARK1992:

  it is 3..tsktsk

  why is it 3?
• ^tamago^

  22 Sep 07, 20:14

  
  
  
  
  the 2 mirrors come together to form a full image in front of you using two halves.
• bonkysleuth

  22 Sep 07, 20:17

  Originally posted by ^tamago^:

  
  
  
  
  the 2 mirrors come together to form a full image in front of you using two halves.

  so that's how you derive to 3??? i kind of don't understand the question. damn it, i fare badly with reflections.
• ^tamago^

  22 Sep 07, 20:18

  Originally posted by bonkysleuth:

  so that's how you derive to 3??? i kind of don't understand the question. damn it, i fare badly with reflections.

  yes, 1 on each mirror (tat makes it two) and a half-half in front.
• eagle

  22 Sep 07, 20:23

  Someone explain in terms of virtual images then he will understand more. I just explained it to my sis, but I'm lazy to draw it out on comp
• eagle

  22 Sep 07, 20:28

  Add on: The mirrors have their own virtual images too
• eagle

  22 Sep 07, 20:47

  I just did this diagram in MS Word
  
  
  
  Hopefully it is understandable why there are 3 images.
• bonkysleuth

  22 Sep 07, 22:07

  Originally posted by eagle:

  I just did this diagram in MS Word
  
  
  
  Hopefully it is understandable why there are 3 images.

  So the third image is the middle part where the two colours meet?
• eagle

  22 Sep 07, 22:09

  Originally posted by bonkysleuth:

  So the third image is the middle part where the two colours meet?

  Forget it... I think I drew wrongly........
• wxboi

  22 Sep 07, 23:09

  (360/x degrees) - 1
  that's the formula i think
• ricorica

  23 Sep 07, 04:01

  hehe, was quite free so decided to draw it up. tink it will look someting like dis am i right?
  
  
• angel7030

  23 Sep 07, 09:11

  Originally posted by bonkysleuth:

  Two plane mirrors are supported with their surfaces at right angles and a small object is placed between them. How many reflected images of this object can be seen in the mirrors?
  
  My guess is 2. But i'm not that sure about this. Please help.
  
  Thanks!

  The reflection is infinitive.
• eagle

  23 Sep 07, 09:15

  Originally posted by angel7030:

  The reflection is infinitive.

  It's not. Look at ricorica's picture
  
  The 3rd image is the from the images of the original mirror.
  
  You get inifinte images from parallel mirrors because the images keep repeating itself. It does not happen here.