Question

In which of the following defect density increases?
 A.Schottky defect
 B.Frenkel defect
 C.F-centre
 D.Impurity defect

Answer 1

Hint: When, density is a proportion of mass for each volume. The normal thickness of an item approaches its complete mass separated by its absolute volume. An article produced using a nearly thick material (like iron) will have less volume than an object of equivalent mass produced using some less thick substance (like water).

Complete answer:
For Schottky defect,
We have to know that the Schottky abandonment is an opening deformity, which brings down the thickness of the strong crystal. In this an equivalent number of cation and anion is absent from the interstitial site and this prompts the bringing down of the thickness.
Therefore, option (A) is incorrect.
For Frenkel defect,
We have to know that the Frenkel deformity, particles get uprooted from their unique position and move to interstitial destinations. Subsequently, there is no adjustment of the thickness of the gem.
Therefore, option (B) is incorrect.
For F-centre,
We have to know that the F-focus is always known as Farbe focus or shading focus is a sort of crystallographic imperfection in which an anionic opportunity in a gem cross section is involved by at least one unpaired electrons.
Therefore, option (C) is incorrect.
For impurity defect,
We have to know that impurity consumes the spaces accessible in the middle of the atoms. Subsequently, the thickness of the cross-section increases.

Therefore, option (D) is correct. Because impurity defect increases the density.

Note:
We have to see that impurity abandonments are unfamiliar iotas that supplant a portion of the particles making up the strong or that crush into the interstices; they are significant in the electrical conduct of semiconductors, which are materials utilized in micro-processors and other electronic gadgets.