Homework Help: physics

Posted by rachel on Sunday, October 30, 2011 at 9:24pm.

a laser beam with wavelength 632.8nm is incident normal to the plane of a diffraction grating with a slit separation d=2000nm. if the diffraction pattern is viewed on a screen 1m from the grating, find the distance separating the first, second, adn third maxima in the pattern.

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