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Re: Double concave mirror toy

On Tue, 07 May 2002 09:20:41 -0400 Tom Bross <Tbross@AOL.COM> writes:
Try shining a laser pointer on the real image. Ask students why
something you can't touch seems to reflect light.


If the student comes up with a plausable response,
how does the teacher know if it is correct???

Herb Gottlieb from New York City
(Where some of our student responses are incorrect sometimes)