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In a face contact cubic cell, contributi...

In a face contact cubic cell, contribution of are atom at a face of the unit cell is

A

`1//2`

B

`1`

C

`2`

D

`3`

Text Solution

Verified by Experts

The correct Answer is:
A
Since half of the stone is inside the unit cell.
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Knowledge Check

  • In a face-centred cubic cell, an atom at the face contributes to the unit cell

    A
    2
    B
    `1/2`
    C
    3
    D
    1

  • In face-centred cubic unit cell :

    A
    face diagonal of the cube is `asqrt(2)` or `4r`
    (a=edge length, r=radius of constituent units)
    B
    effective number of atoms in the unit cell is 4
    C
    8 tetrahedral voids per unit cell
    D
    rank of the unit cell is 3

  • In a cubic close packed structure, fractional contributions of an atom at the corner and at the face in the unit cell are, respectively-

    A
    1/8 and 1/2
    B
    1/2 and 1/4
    C
    1/4 and 1/2
    D
    1/4 and 1/8
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