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An imaginary line perpendicular to a reflecting surface is called _________.
An imaginary line perpendicular to a reflecting surface is called _________. a. a mirror
b. a normal
c. an incident
d. a refracting surface
Animaginary line perpendicularto areflecting surfaceis called anormal.Ingeometry,we define thenormalof asurfaceas avectoror araythat isperpendicularto thesurface. (Or avectorthat isorthogonalto all thetangent linesto thesurface)Thenormalcan have different lengths, it can be aunit vector(of module 1) or a generalvector, so the only thing that defines anormal vectoris itsperpendicularityto a givensurface.Thus, theimaginary line perpendicularto areflecting surfaceis called anormal. Thus the correct option is b.If you want to learn more, you can read:brainly.com/question/2513251...
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