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In the body centered cubic unit cell and...

In the body centered cubic unit cell and simple unit cell, the radius of atoms in terms of edge length (a) of the unit cell is respectively:

A

`(a)/(2), (a)/(2sqrt(2))`

B

` (a)/(sqrt(2)),(a)/(2)`

C

` (a)/(2sqrt(2)),(a)/(2)`

D

` (3sqrt(a))/(4),(a)/(2)`

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • In the primitie cubic unit cell of closed packed atoms, the radius of atom in terms of edge length (a) of unit cell is

    A
    `(sqrt(3))/(4)a`
    B
    `(a)/(2)`
    C
    `(sqrt(3))/(2)a`
    D
    `(sqrt(2))/(2)a`

  • In the face-centred cubic unit cell of cloest packed atom,s the radius of atoms of edge length (a) of the unit cell is

    A
    `(a)/(2)`
    B
    `(a)/(sqrt(2))`
    C
    `(sqrt(3))/(2)a`
    D
    `(sqrt(2))/(2)a`

  • In the face centred cubic unit cell, edge length is

    A
    `a/sqrt3r`
    B
    `4/sqrt2r`
    C
    `2 r`
    D
    `sqrt3/2r`

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