Question

Which state of metal does this figure depict?

(a) Coarse grains > 0.04 mm

(b) Fine grains 0.004 mm

(c) Very fine grains 0.0004 mm

(d) Distorted crystal

I had been asked this question in an interview for job.

The origin of the question is Diffraction in portion Solid Solutions & Crystallography of Engineering Material & Metallurgy

Answer 1

The correct choice is (d) Distorted crystal

Explanation: X-ray diffraction is a technique used for investigation of the state of a crystal structure. Laue back reflection method is used for single crystals or polycrystalline masses. The given figure depicts the distorted form of a crystal.