Bragg's law (br gz)n. The fundamental law of x-ray crystallography, n  = 2dsin , where n is an integer, is the wavelength of a beam of x-rays incident on a crystal with lattice planes separated by distance d, and is the Bragg angle.[After Sir William Henry Bragg and Sir William Lawrence Bragg.] |
Bragg's law
n
(Physics / General Physics) the principle that when a beam of X-rays of wavelength λ enters a crystal, the maximum intensity of the reflected ray occurs when sin θ = nλ/2d, where θ is the complement of the angle of incidence, n is a whole number, and d is the distance between layers of atoms
[named after Sir William Henry Bragg (1862-1942), and his son, Sir Lawrence Bragg (1890-1971), British physicists]
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