MCQ
Ratio among linear expansion coefficient ($\alpha$), areal expansion coefficient ($\beta$) and volume expansion coefficient ($\gamma$) is
  • $1:2:3$
  • B
    $3:2:1$
  • C
    $4:3:2$
  • D
    None of these

Answer

Correct option: A.
$1:2:3$
a
(a) As $\alpha = \frac{\beta }{2} = \frac{\gamma }{3}$ $\Rightarrow$ $\alpha :\beta :\gamma = 1:2:3$

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