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NEET 2001 (AIPMT) · Other / Mixed

Other / Mixed question from NEET 2001 (AIPMT)

Q9NEET 2001 · AIPMTMedium

Other / Mixed

In bcc structure of lattice constant $a$ , the minimum distance between atoms is

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Answer: (a)

In BCC, the body-centre atom touches the corner atoms along the body diagonal of length $\sqrt{3}a$ .
The centre lies at the midpoint, so the minimum distance is $\frac{\sqrt{3}a}{2}$ .
So the answer is (a) $\frac{\sqrt{3}}{2}a$ .

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