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A metal M(Z = 40) depending on temerpature crystallises in FCC and BCC crystal structure whose unit length areas are 3.5 are 3Å respectively. The ratio of its density is FCC and BCC is
A. |
1.259 |
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B. |
2 |
C. |
`8/sqrt6` |
D. |
`16/(3sqrt6)` |