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The closed packed structure have both oc...

The closed packed structure have both octahedral and tetrahedral voids. In ccp structure, there is one octahedral void at the centre of body and twelve octahedral voids on the edge. Each one of which is common to four other unit cells. In ccp structure, there are eight tetrahedral voids. These voids lie on body diagonals. Two tetrahedral voids are located at each body diagonal.
The distance between an octahedral and tetrahedral void in fcc lattice would be :

A

`asqrt(3)`

B

`(asqrt(3))/(2)`

C

`(a)/(sqrt(3))`

D

`(asqrt(3))/(4)`

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • The closed packed structure have both octahedral and tetrahedral voids. In ccp structure, there is one octahedral void at the centre of body and twelve octahedral voids on the edge. Each one of which is common to four other unit cells. In ccp structure, there are eight tetrahedral voids. These voids lie on body diagonals. Two tetrahedral voids are located at each body diagonal. Shortest distance between two octahedral voids is :

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

  • The closed packed structure have both octahedral and tetrahedral voids. In ccp structure, there is one octahedral void at the centre of body and twelve octahedral voids on the edge. Each one of which is common to four other unit cells. In ccp structure, there are eight tetrahedral voids. These voids lie on body diagonals. Two tetrahedral voids are located at each body diagonal. Shortest distance between two tetrahedral voids is :

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

  • The minimum distance between an octahedral and a tetrahedral void in fcc lattice is

    A
    `a sqrt3`
    B
    `(a sqrt3)/2`
    C
    `(a sqrt3)/3`
    D
    `(a sqrt3)/4`