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

  • question_answer
    Water falls from a height of 210m. Assuming whole of energy due to fall is converted into heat the rise in temperature of water would be (J = 4.3 Joule/cal) [Pb. PMT 2002]

    A)            42°C                                         

    B)            49°C

    C)            0.49°C                                     

    D)            4.9°C

    Correct Answer: C

    Solution :

               \[\Delta \theta =0.0023\,h=0.0023\times 210=0.483{}^\circ C\approx 0.49{}^\circ C\].


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