If \( \alpha, \beta \) and \( \gamma \) are coefficient of linear, area and volume expansion res...

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If \( \alpha, \beta \) and \( \gamma \) are coefficient of linear, area and volume expansion respectively, then
(a) \( \gamma=3 \alpha \)
(b) \( \alpha=3 \gamma \)
(c) \( \beta=3 \alpha \)
(d) \( \gamma=3 \beta \)
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