There are N atoms in a crystal with $N_{1}$ interstitial positions in its structure. If there are n Frenkel defects in the crystal, then n is equal to :

{(\frac{N}{N_{1}})}^{\frac{1}{2}} e x p^{(- E_{i} / 2 K T)}

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{(\frac{N_{1}}{N})}^{\frac{1}{2}} e x p^{(- E_{i} / 2 K T)}

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{(\frac{N}{N_{1}})}^{\frac{1}{2}} e x p^{(E_{i} / 2 K T)}

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{(\frac{N_{1}}{N})}^{\frac{1}{2}} e x p^{(E_{i} / 2 K T)}

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Solution

The correct option is A ${(\frac{N}{N_{1}})}^{\frac{1}{2}} e x p^{(- E_{i} / 2 K T)}$
There are N atoms in a crystal with $N_{1}$ interstitial positions in its structure. If there are n Frenkel defects in the crystal, then n is equal to ${(\frac{N}{N_{1}})}^{\frac{1}{2}} e x p^{(- E_{i} / 2 K T)}$

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