A) \[1.934\overset{\text{o}}{\mathop{A}}\,\]
B) \[0.461\overset{\text{o}}{\mathop{A}}\,\]
C) \[2.108\overset{\text{o}}{\mathop{A}}\,\]
D) \[4.988\overset{\text{o}}{\mathop{A}}\,\]
Correct Answer: C
Solution :
for \[(bcc)\,={{r}^{+}}/{{r}^{-}}=0.732\,\] and \[a=\frac{2({{r}^{+}}+{{r}^{-}})}{\sqrt{3}}\] and diameter of cubical void \[(2{{r}^{+}})=a\,(\sqrt{3}-1)\,=2.888\,\times 0.732\,=2.108\,\overset{\text{o}}{\mathop{\text{A}}}\,\]
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