AIIMS AIIMS Solved Paper-2010

  • question_answer
    A metal plate 4 mm thick has a temperature difference of \[32{}^\circ C\] between its faces. It transmits 200 kcal/h through an area of \[5\,c{{m}^{2}}\]. Thermal conductivity of the material is

    A) \[58.33\text{ }W/m-{}^\circ C\]                 

    B) \[33.58\text{ }W/m-{}^\circ C\]

    C) \[5x10-4\text{ }W/m-{}^\circ C\]

    D) None of these

    Correct Answer: A

    Solution :

    Here, \[\sqrt{1000}mA\] \[{{\sin }^{-1}}(\tan \,r)\] Transmit heat per hours \[{{\sin }^{-1}}(\tan \,r)\] \[ta{{n}^{-1}}(\tan \,i)\] \[{{\cot }^{-1}}(\tan \,i)\] \[\lambda \] We know that \[\frac{\Delta Q}{\Delta T}\,=KA\,\left( \frac{\Delta T}{\Delta x} \right)\] \[v{{\left( \frac{3}{4} \right)}^{1/2}}\] Thermal conductivity of material. \[v{{\left( \frac{4}{3} \right)}^{1/2}}\] or       \[{{\left( \frac{4}{3} \right)}^{1/2}}\] \[{{\left( \frac{4}{3} \right)}^{1/2}}\]


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