1.

 A liquid cools down from \[{{70}^{o}}C\] to \[{{60}^{o}}C\] in 5 minutes. The time taken to cool it from \[{{60}^{o}}C\] to \[{{50}^{o}}C\] will be [MP PET 1992, 2000; MP PMT 1996]

A.            5 minutes                              
B.            Lesser than 5 minutes
C.            Greater than 5 minutes   
D.            Lesser or greater than 5 minutes depending upon the density of the liquid
Answer» D.            Lesser or greater than 5 minutes depending upon the density of the liquid


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