7th Class Science Related to Competitive Exam Question Bank Work and energy

  • question_answer
    The S.I. unit of energy is

    A) joule                

    B) dyne

    C) erg                              

    D) Newton

    Correct Answer: A

    Solution :

        In S.I. system joule is the unit of energy and erg in C.G.S. system.     


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