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JEE Main & Advanced Physics Thermometry, Calorimetry & Thermal Expansion Question Bank Self Evaluation Test - Thermal Properties of Matter

  • question_answer
    The two ends of a metal rod are maintained at temperatures \[100{}^\circ C\] and \[110{}^\circ C\]. The rate of heat flow in the rod is found to be 4.0 J/s. If the ends are maintained at temperatures \[200{}^\circ C\] and \[210{}^\circ C\], the rate of heat flow will be

    A) 16.8 J/s

    B) 8.0 J/s

    C) 4.0 J/s

    D) 44.0 J/s

    Correct Answer: C

    Solution :

    [c] As the temperature difference \[\Delta T=10{}^\circ C\]as well as the thermal resistance is same for both the cases, so thermal current or rate of heat flow will also be same for both the cases.


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