1.

Solidcopper cubeof edge1 cmis suspended in an evacuatedenclosure . Itstemperatureis foundto fall from100^(@)Cto 99^(@)Cin 100 seconds . Anothersolid copper cubeof edge2cm with similar surface natureis suspendedin similar manner . Findthe timerequiredfor this cubeto cool from 100^(@)C to 99^(@)C

Answer»

SOLUTION :200 SEC


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