In a two-slit experiment, the slit separation is 3.80 × 10^-5 m. The interference pattern

is recorded on a flat screen-like detector that is 2.00 m away from the slits. If the seventh bright fringe on the detector is 10.0 cm away from the central fringe, what is the wavelength of the light passing through the slits?

281 nm

271 nm

291 nm

261 nm

100 nm

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