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Answer Posted / peter
The previous comment merely DESCRIBES reflection but,
however, it does NOT explain it. For a start, light is NOT
comprised of 'rays'. These are only a mathematical
convenience IMAGINED for the purpose of optical engineering
calculations, as in the manufacture of lenses.
The fact is, that with our current knowledge of the nature
of light, we cannot explain its reflection, especially
uniform reflection as from a mirror surface.
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