A) \[1.601\overset{\text{o}}{\mathop{\text{A}}}\,\]
B) \[1.857\overset{\text{o}}{\mathop{\text{A}}}\,\]
C) \[2.857\overset{\text{o}}{\mathop{\text{A}}}\,\]
D) \[2.145\overset{\text{o}}{\mathop{\text{A}}}\,\]
Correct Answer: B
Solution :
: \[a=4.29\overset{\text{o}}{\mathop{\text{A}}}\,\] For bcc, \[r=\frac{\sqrt{3}}{4}a=\frac{\sqrt{3}}{4}\times 4.29=1.857\overset{\text{o}}{\mathop{\text{A}}}\,\]
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