Experimentally for finding the grain size we use the equation, D = Kt . Here K is the temperature dependent proportionality constant and n is a number less than 0.5 and this n can be taken as 0.5 under which circumstances?

Experimentally for finding the grain size we use the equation, D = Kt

1.	Experimentally for finding the grain size we use the equation, D = Kt . Here K is the temperature dependent proportionality constant and n is a number less than 0.5 and this n can be taken as 0.5 under which circumstances?
A.	Low temperature
B.	High pressure
C.	Impure metals
D.	High temperature
Answer» E.

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Experimentally for finding the grain size we use the equation, D = Kt . Here K is the temperature dependent proportionality constant and n is a number less than 0.5 and this n can be taken as 0.5 under which circumstances?

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