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Which of the following  is/are correct ?...

Which of the following  is/are correct ? 

A

In Schottky defect density of crystal decreases

B

In Frenkel defect density remains the same

C

Pyroelectricity is produced when some polar crystals are heated

D

In Frenkel defect density of crystal decreses.

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
Density decreases in schottkey defect due to holer but it is remains unchanged in Frenkel defect. Pyroelectricity is produced when some polar crystals are heated.
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