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AP Physics 2
14.8 Double-Slit Interference and Diffraction Gratings
BeginnerMCQMathematicalProportional Analysis20.9k
Double-slit interference setup.
Double-slit interference setup.
A monochromatic light beam passes through a double slit with slit separation \(d\) and forms an interference pattern on a screen positioned a distance \(L\) away. Three separate trials are conducted using three different monochromatic light sources: Source 1 (red light, \(\lambda_1 = 650\text{ nm}\)), Source 2 (green light, \(\lambda_2 = 530\text{ nm}\)), and Source 3 (blue light, \(\lambda_3 = 450\text{ nm}\)). Which of the following correctly ranks the distance \(\Delta y\) between adjacent bright fringes on the screen for the three light sources?

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