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 (10[1])dispersive (10[1])elements in spectrometers. The first zero of the Bessel function J-sub-one equals the constant 1.22 in Rayleigh’s criterion for resolution limited by this process. (10[1])This process’ intensity maxima occur (10[1])when sine theta is proportional (10[1]-5[1])to an integer multiple of wavelength by Bragg’s (10[1])Law. Tightly spaced slits make up gratings named for this process, (-5[1])which light (10[1])undergoes before self-interfering in the double slit experiment. For 10 points, name this process in which light bends around an object. ■END■ (10[2])

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