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Define bragg's law
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Define bragg's law
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Answer:
When the X-ray is incident onto a crystal surface, its angle of incidence, θ, will reflect with the same angle of scattering, θ.
Answer:
Bragg's law is a principle in physics that describes the relationship between the spacing of atomic planes in crystals and the angles of incidence at which these planes produce the most intense reflections.
Bragg's law states that when an X-ray beam of wavelength λ enters a crystal, the maximum intensity of the reflected ray occurs when:
sin θ = n λ/2 d
θ is the complement of the angle of incidence
n is a whole number
d is the distance between layers of atoms
Bragg's law also states that when an X-ray is incident onto a crystal surface, its angle of incidence, θ, will reflect with the same angle of scattering, θ.
The resulting wave interference pattern is the basis of diffraction analysis, which is called Bragg diffraction.
Bragg's law was introduced by Sir W.H. Bragg and his son Sir W.L. Bragg.