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Passage - I : Materials expansion character depends on them being isotropic or anisotropic. The superficial and cubical expansion coefficients can be arrived at by the addition of linear expansion coefficient in the three dimensions. While studying the expansion of a solid or a liquid one should consider the expansion of the container also. Any hole in a conductor will become larger on getting heated up as one comments expansion is a photographic enlargement. Each liquid has its own characteristics behaviour to change of temperature. Two similar containers A and B are filled with alcohol and water at 4°C respectively. On cooling

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Both of them expand
ALCOHOL will CONDENSE and WATER will expand
Water will condense and alcohol will expand
Both will expand

Answer :B


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