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BVP Medical BVP Medical Solved Paper-2004

  • question_answer
    Two rods having thermal conductivity in the ratio of 5 : 3 having equal lengths and equal cross-sectional area are joined by face to face. If the temperature of the free end of the first rod is \[100{}^\circ C\] and free end of second rod is \[20{}^\circ C\]. Then the temperature of the junction is :

    A)  \[70{}^\circ C\]                                

    B) \[50{}^\circ C\]

    C)  \[60{}^\circ C\]                                

    D) \[90{}^\circ C\]

    Correct Answer: A

    Solution :

    Here: Thermal conductivity of first rod \[\Omega \] Thermal conductivity of second rod \[\Omega \] Temperature of end of first rod \[\Omega \] Temperature of end of second rod \[\Omega \] In the steady state the rate of heat transfer in both the conductor is given by \[\Omega \] or            \[\Omega \] or            \[\Omega \] or            \[\Omega \] or            \[v=\frac{E}{B}\]


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