Question: An object Kept in large room having, T = 25 oC takes 12 min to cool from 80 oC to 70 oC, The time

An object Kept in large room having, T = 25 oC takes

An object Kept in large room having, T = 25 oC takes 12 min to cool from 80 oC to 70 oC, The time taken to cool for the Same object from 70voC to 60 oC would be nearly

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