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AP Physics 2
13.1 Reflection
IntermediateMCQConceptual25.3k
Parallel rays reflecting off a microscopically rough surface.
Parallel rays reflecting off a microscopically rough surface.
A narrow parallel beam of light traveling through air strikes a flat but unpolished, microscopically rough surface, resulting in diffuse reflection as shown in the diagram. Which of the following claims correctly compares the angle of incidence to the angle of reflection for an individual ray in the beam, and provides a correct physical justification for why the reflected light scatters in multiple directions?

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