The coefficient of apparent expansion of a liquid when determined using two different vessels A and B are γ1and γ2respectively. If the coefficient of linear expansion of the vessel A is α, the coefficient of linear expansion of the vessel B is
A
αγ1γ2γ1+γ2
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B
γ1−γ22α
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C
γ1−γ2+α3
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D
γ1−γ23+α
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Solution
The correct option is Dγ1−γ23+α γr=γl+γg=γr+3αg Given, γr=γ1+3α1 ....(1) γr=γ2+3α2 ....(2) Equating (1) and (2), γ1+3α1=γ2+3α2 ∴α2=γ1−γ23+α1