2. Questions Bank
  3. 9th Class
  4. Science
  5. Work and energy

9th Class Science Work and energy Question Bank Work, Energy and Sound

  • question_answer
    Which among the following is represented by Force \[\times \] Displacement?

    A) Frequency                     

    B) Work done

    C) Speed   

    D)        Time

    E) None of these

    Correct Answer: B

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