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

  • question_answer
    A brass disc fits simply in a hole of a steel plate. The disc from the hole can be loosened if the system [UPSEAT 2001]

    A)            First heated then cooled

    B)            First cooled then heated

    C)            Is heated                               

    D)            Is cooled

    Correct Answer: D

    Solution :

    Since, the coefficient of linear expansion of brass is greater than that of steel. On cooling, the brass contracts more, so, it get loosened.


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