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Railways Basic Science and Engineering Work, Energy And Power / कार्य, ऊर्जा एवं शक्ति Question Bank Work, Power, Energy

  • question_answer
    A 1 kg block is lifted veritically 1 m by a boy. The work done by the boy is

    A)  1J                               

    B)  0J

    C)  9.8 J                           

    D)  0.IJ

    Correct Answer: C

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