Question

X-rays which in diffraction experiments leads to which of the following radiations?

(a) Gamma radiation

(b) Monochromatic gamma radiation

(c) Monochromatic X-rays

(d) X-rays

The question was asked during an internship interview.

This intriguing question originated from X-rays and their Generations topic in portion X-Ray Diffraction of Solid State Chemistry

Answer 1

Right option is (c) Monochromatic X-rays

Explanation: The X-rays which are used in almost all diffraction experiments are produced by a different process that leads to monochromatic X-rays. An electron in an outer orbital drops down to occupy he vacant 1s level and the energy in the transition appears as X-radiation.