1.

While measuring length of small iron rod, following five reading wee obtained. `12.66 mm, 12.58 mm, 12.62 mm, 12.80 mm and 12.72mm` The experimenter reported the result of the experiment based on the obove readings.A. Number of significant figures in the length reported will be `3`.B. Number of significant figures in the lenth reported will be `4`.C. Number of significant figure in the error reported will be `1`.D. Number of significant figures in the error reported will be `2`.

Answer» Correct Answer - B


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