Bragg'slaw

Bragg's law (brăgz) n.

The fundamental law of x-ray crystallography, nλ = 2dsinθ, where n is an integer, λis the wavelength of a beam of x-rays incident on a crystal with lattice planes separated by distance d, and θis the Bragg angle.

  [After Bragg, Sir William Henry, and Bragg, Sir William Lawrence.]

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