2. Questions Bank
  3. 7th Class
  4. Science
  5. Time and Motion

7th Class Science Time and Motion Question Bank Motion and Time

  • question_answer
    The time taken to complete 20 oscillations by a second?s pendulum is

    A) 20s   

    B) 50s

    C) 40s                              

    D) 5s

    Correct Answer: A

    Solution :

        20s                              


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