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AP Physics 2/Unit 13 – Geometric Optics
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Limitations of the Ray Model of Light
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When a coherent light source passes through two narrow slits, an interference pattern is observed on a distant screen. Which statement correctly explains why ray diagrams alone are insufficient to predict this phenomenon?

A

Ray diagrams cannot account for phase relationships between waves

B

Ray diagrams only work for reflection, not transmission

C

Ray diagrams cannot represent light of high intensity

D

Ray diagrams apply only to incoherent light sources

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