11th Class Physics Physical World / भौतिक जगत

  • question_answer 3)
    A calorie is a unit of heat energy and it equals about 4.2 J, where . Suppose we employ a system of units in which the unit of mass equals  kg, the unit of length equals  m, the unit of time is  s. Show that a calorie has a magnitude  in terms of the new units.  

    Answer:

    As calorie = 4.2 J, where Clearly, [Energy]                
    SI New System
                    Hence 1 calorie  new units of energy.  


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