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

  • question_answer
    If two balls of same metal weighing 5 gm and 10 gm strike with a target with the same velocity. The heat energy so developed is used for raising their temperature alone, then the temperature will be higher

    A)            For bigger ball

    B)            For smaller ball

    C)            Equal for both the balls

    D)            None is correct from the above three

    Correct Answer: C

    Solution :

                       Energy = \[\frac{1}{2}m{{v}^{2}}\] = mc Dq; Þ \[\Delta \theta \propto {{v}^{2}}\] Temperature does not depend upon the mass of the balls.


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