Re: Virtual and Real Images

["RAUBER, JOEL" <JOEL_RAUBER@SDSTATE.EDU>]

Nothing beats taking a converging lens and sheet of white paper and aiming
them at a window so that a visible image of the outside world (trees other
buildings, etc) is formed on the paper.  If you have a diverging lens with
you you find that you can not due this, despite the fact that *you* can look
through the lens out the window and see the outside world.

Joel

> -----Original Message-----
> From: Tina Fanetti [mailto:FanettT@QUEST.WITCC.CC.IA.US]
> Sent: Tuesday, March 19, 2002 8:40 AM
> To: PHYS-L@lists.nau.edu
> Subject: Virtual and Real Images
>
>
> Hello all
> No matter how I try to explain it to my students, I can't
> seem to get across the differences between a real and virtual image.
>
> I told them that a real image could be formed on a screen, a
> virtual could not.  A real image is where light converges.
> There is no convergences of light rays at a virtual image.
>
> They are still confused and I am at a loss.
>
> Ideas?  Thanks
>
>
> Tina Fanetti
> Physics Instructor
> Western Iowa Technical Community College
> 4647 Stone Ave
> Sioux City IA 51102
> 712-274-8733 ext 1429