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JEE Main & Advanced Physics Mathematical Tools, Units & Dimensions Question Bank Self Evaluation Test - Physical World, Units and Measurements

  • question_answer
    Which of the following statements is/are correct?
    I. 345.726 has six significant figures.
    II. 0.004289 has seven significant figures.
    III. 125000 has three significant figures.
    IV. 9.0042 has five significant figures.

    A) I only

    B)  II only

    C)  I, III and IV

    D)  II, III and IV

    Correct Answer: C

    Solution :

    [c]  0.004289 has four significant figures


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