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OpenStudy (anonymous):
A laser beam is incident on two slits with a separation of 0.210mm, and a screen is placed 4.65m from the slits. An interference pattern appears on the screen. If the angle from the center fringe to the first bright fringe to the side is 0.156 degrees, what is the wavelength of the laser light?
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OpenStudy (saifoo.khan):
\[\large λ= \frac{xD}{d}\]
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