Friday 23 May 2008

Real and virtual images

For the purposes of exam answers, this is what you have to say:

A real image can be projected onto a piece of paper.
  • We did this is class to see an upside down picture of the room and to get pictures of the upside down triangle.
  • You can spot it on a diagram because it is where solid rays cross.

A virtual image cannot be projected onto a piece of paper.
  • You can spot it on a diagram because it is where dotted rays cross.

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