Physics

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In an interference of light experiment, coherent light that contains two wavelengths: 614 nm (red-orange) and 429 nm (indigo-blue), passes through two narrow slits separated by 3.12 μm, and the interference pattern is observed on an observation screen 2.17 m away. (1 μm = 1×10-6 m, 1 nm = 1×10-9 m.)

What is the linear separation on the screen between the third bright fringes produced by the two wavelengths on one side of the central bright fringe in the experiment? (in meters)

Note: There is no need to make a small angle approximation here: you can calculate what you need directly.

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