Chapter 12, Problem 12.25QP

Interpretation Introduction

Interpretation:

• The Bragg equation has to be written and the terms in it has to be defined.
• The usage of Bragg equation in measurement of interatomic distance has to be described.

Concept Introduction:

Bragg equation was derived from Bragg’s law which states –

“When X-ray is incident onto a crystal surface, the angle of incidence $\text{θ}$ gets reflected back with similar angle $\text{θ}$ which is known as angle of scattering. When the path difference is equal to the whole number, constructive interference occurs.”