Q.

Coefficient of volume expansion of a cube is n times coefficient of superficial expansion. Where n is

Moderate

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1.5

2.5

answer is 2.

(Detailed Solution Below)

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Detailed Solution

γ is coefficient of volume expansion of solid; β is coefficient of areal expansion of solid; α is coefficient of linear expansion of solid; relation between α and γ is γ=3α---(1) but β=2α⇒α=β2 substitute α value in eqn (1) γ=3β2 γ=1.5β

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