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AFMC AFMC Solved Paper-2007

  • question_answer
    Two friends A and B are waiting for another friend for tea. A took the tea in a cup and mixed the cold milk and then waits. B took the tea in the cup and then mixed the cold milk when the friend comes. Then the tea will be hotter in the cup of

    A) A                                            

    B) B

    C) tea will be equally hot in both cups

    D) friend's cup

    Correct Answer: A

    Solution :

    The rate of heat loss is proportional to the difference in temperature. The difference of temperature between the tea in cup A and  the surrounding is reduced, so it loses less heat, the tea in cup B loses more heat because of large temperature difference. Hence, the tea in cup A will be hotter.


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