Question

▶What is Bragg's law!?

▶Bragg's law is applicable for which type of diffraction!?

▶Derive the equation of Bragg's law​

Answer 1

Answer:

=Bragg's law, or Wulff–Bragg's condition, a special case of Laue diffraction, gives the angles for coherent and incoherent scattering from a crystal lattice. When X-rays are incident on an atom, they make the electronic cloud move, as does any electromagnetic wave.

=A similar process occurs upon scattering neutron waves from the nuclei or by a coherent spin interaction with an unpaired electron. These re-emitted wave fields interfere with each other either constructively or destructively (overlapping waves either add up together to produce stronger peaks or are subtracted from each other to some degree), producing a diffraction pattern on a detector or film. The resulting wave interference pattern is the basis of diffraction analysis. This analysis is called Bragg diffraction.

Explanation:

According to Bragg Equation:

nλ = 2d sinΘ

Therefore, according to the derivation of Bragg’s Law:

The equation explains why the faces of crystals reflect X-ray beams at particular angles of incidence (Θ, λ).

The variable d indicates the distance between the atomic layers and the variable Lambda specifies the wavelength of the incident X-ray beam.

n as an integer.

Bragg's Law