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The coefficient of cubical expansion is x times coefficient of superficial expansion,then the value of X is

A)1.5 B)2 c)2.5 D)3


Γ=Coefficient of cubical expansion,β=Coefficient of Superficial expansion
γ=xβ and 2β=3γ , γ=2/3β
So, for
A) x=1.5 , γ=2/3×1.5=1                                Ans.
B) x=2  , γ=2/3×2=1.3333334                       Ans.
C) x=2.5  ,γ=2/3×2.5=1.66666664                 Ans.
D) x=3 , γ=2/3×3=2                                     Ans.    
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I hope you asked the value of cofficient of Cubical expansion .
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