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Combinations of Lenses & Mirrors

Which type of...

Question

Which type of voids are occupied by 'x' atoms:

A

Tetrahedral

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B

Octahedral

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C

Cubic

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D

All of these

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Solution

The correct option is A
Tetrahedral

$\frac{r_{x}}{r_{z}} = \frac{50}{200}$ =0.25

Which is b/w 0.225-0.414

Therefore 'X' atoms are in tetrahedral voids.

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