9th Class Science Time and Motion Question Bank Assertion and Reason MCQs - Motion

  • question_answer
    Direction: For question given below two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes [a], [b], [c] and [d] as given below
    Assertion Position-time graph of a stationary object is a straight line parallel to time axis.
    Reason For a stationary object, position does not change with time.

    A) Both A and R are true and R is correct explanation of the A.

    B) Both A and R are true but R is not the correct explanation of the A.

    C) A is true but R is false.

    D) A is false but R is true.

    Correct Answer: A

    Solution :

    Position-time graph for a stationary object is a straight line parallel to time-axis showing that no change in position with time.


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