1.

A metal ball immersed in alcohol weighs \[{{W}_{1}}\] at 0°C and \[{{W}_{2}}\] at 59°C. The coefficient of cubical expansion of the metal is less than that of alcohol. Assuming that the density of metal is large compared to that of alcohol, it can be shown that [CPMT 1998]

A.            \[{{W}_{1}}>{{W}_{2}}\] 
B.            \[{{W}_{1}}={{W}_{2}}\]
C.            \[{{W}_{1}}<{{W}_{2}}\] 
D.            \[{{W}_{2}}=({{W}_{1}}/2)\]
Answer» D.            \[{{W}_{2}}=({{W}_{1}}/2)\]


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