Tossup

This process is caused by devices partially named “echelle,” which have relatively few lines per millimeter. Either prisms or devices named for this process are used as dispersive (10[1])elements (10[1])in spectrometers. (10[1])The first zero of the Bessel function (10[1])J-sub-one equals the constant (-5[1])1.22 in Rayleigh’s criterion for resolution limited by this process. This process’ intensity maxima occur when sine theta is proportional to an integer multiple of wavelength by Bragg’s Law. (10[1])Tightly spaced slits (10[1])make up gratings named for this process, (10[1])which light undergoes before self-interfering in the double slit experiment. For 10 points, name this process in which light bends around an object. ■END■ (10[1])

ANSWER: diffraction [accept diffraction gratings; prompt on dispersion before “dispersive” by asking “what causes the dispersion?”]
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