Richard Clark wrote:
Cecil Moore wrote:
The problem is that if you cannot understand
the simplest of examples involving lossless, refractionless, laser
systems, you cannot possibly understand anything more complicated.

Um, yes. Can tell us why your example exhibits a reflection product
TEN TIMES BRIGHTER THAN THE SUN; when in your words it has canceled
completely? :-)

It doesn't. All reflections are eliminated by wave cancellation.
That is a given boundary condition for the simple example.

You can argue that there's no such thing in reality as a
dimensionless point or a line of only one dimension or a
plane of only two dimensions. That doesn't keep such from
being taught as concepts in every plane geometry class.
--
73, Cecil http://www.qsl.net/w5dxp

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