Banking Physics Heat Question Bank Heat

  • question_answer
    Consider two identical iron spheres, one which lie on a thermally insulating plate, while the other hangs from an insulatory thread. Equal amount of heat is supplied to the two spheres

    A)  Temperature of A will be greater than B

    B)  Temperature of B will be greater than A  

    C)  Their temperature will be equal

    D)  Can't be predicted

    Correct Answer: B

    Solution :

     Temperature of B will be higher because, due to expansion, centre of mass of B will come down. Same heat is supplied but in B, Potential energy is decreased therefore internal energy gain will be more.

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