what is braggs law and wat r its primary applicatons?

Answer 1

Bragg's law is result of experiments into X-Ray differaction.When x-rays are scattered from a crystal lattice, peaks of scattered intensity are observed which correspond to the following conditions:

The angle of incidence = angle of scattering.
The pathlength difference is equal to an integer number of wavelengths.

Bragg's law relates the separation of two crystal planes, d, to the wavelength of the probing x-ray radiation, λ, and the angle of scattering of the x-rays by those planes, θ: the relationship is λ = 2dsinθ.

The condition for maximum intensity contained in Bragg's law above allow us to calculate details about the crystal structure, or if the crystal structure is known, to determine the wavelength of the x-rays incident upon the crystal.

Answer 2

bragg's law is 2dsinx=n×lamda where x is the angle of incidence as well as reflection and it is also called as glancing angle.lamda is wavelength .according to bragg's law multiple reflected rays interface constructively and diffraction pattern is obtained.the primary application of this law to find the conditions of diffraction in crystals.