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QAIPMT-2005-Ph-2535: NEET 2005 Physics - Class 11 AIPMT-2005-Ph-2535 Solution: Copper has face centered cubic (fcc) lattice with interatomic…
Copper has face centered cubic (fcc) lattice with interatomic spacing equal to 2.54 . The value of lattice constant for this lattice is 2.54 3.59 1.27 5.08
Multiple Choice Options
- A BA 2 sin _
- B BA 2 cos _
- C BA 2 sin _ cos _
- D zero.
Step-by-Step Verified Solution
Let A _ _ B _ = C _
The cross product of B _ and A _ is perpendicular
to the plane containing A _
and B _
i.e. perpendicular
to B _
If a dot product of this cross product and A _ is taken, as
the cross product is perpendicular to A _ , C _ _ A _ = 0
Therefore product of ( A _ _ B _ ) _ A _ = 0