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AP Physics 2
14.8 Double-Slit Interference and Diffraction Gratings
14.4 Electromagnetic Waves
IntermediateMCQConceptual25.6k
Double-slit interference setup.
Double-slit interference setup.
In a Young's double-slit experiment, monochromatic red light and monochromatic violet light are successively directed through the same slit apparatus onto a distant screen. Students observe that the bright interference fringes produced by the red light are spaced farther apart than the bright fringes produced by the violet light. Which of the following statements provides the best physical explanation for this observation?

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