6. On regular reflection from the surface XY, the reflected ray will go along & 02 D C X - a. A b.D c.B d.C
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Regular reflection occurs at the surface of a plane surface like a plane mirror. Reflected rays after regular reflection are parallel.
Diffused reflection occurs at the surface of a rough surface like cardboard. Reflected rays after regular reflection are not parallel.
Note: Laws of reflection are valid in both the cases
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