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The coefficient of linear expansion of c...

The coefficient of linear expansion of crystal in one direction is `alpha_(1)` and that in every direction perpendicular to it `alpha_(2)`. The coefficient of cubical expansion is :

A

`alpha_(1) + alpha_(2)`

B

`2alpha_(1) + alpha_(2)`

C

`alpha_(1) + 2alpha_(2)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Volume coefficient of expansion of water is

    A
    max. at `4^(@)` C
    B
    minimum at `4^(@)` C
    C
    zero at `4^(@)` C
    D
    negative at `4^(@)`

  • Volume coefficient of expansion of water is

    A
    max. at `4^(@)C`
    B
    minimum at `4^(@)C`
    C
    zero at `4^(@)C`
    D
    negative at `4^(@)C`

  • The coefficient of x^4 in the expansion of (1+x-2x^2)^7 is

    A
    `-81`
    B
    `-91`
    C
    81
    D
    91

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