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JEE Main & Advanced Physics Thermometry, Calorimetry & Thermal Expansion Question Bank Thermal Expansion

  • question_answer
    At some temperature T, a bronze pin is a little large to fit into a hole drilled in a steel block. The change in temperature required for an exact fit is minimum when [SCRA 1998]

    A)            Only the block is heated

    B)            Both block and pin are heated together

    C)            Both block and pin are cooled together

    D)            Only the pin is cooled

    Correct Answer: A

    Solution :

               Since coefficient of expansion of steel is greater than that of bronze. Hence with small increase in it's temperature the hole expand sufficiently.


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