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Question
State the number of significant figures in the following:
0.007 m2
Solution
0.007 m2 has one significant figure.
Explanation:
If the number is less than one, then all zeros on the right of the decimal point (but left to the first non-zero) are insignificant. This means that here, two zeros after the decimal are not significant. Hence, only 7 is a significant figure in this quantity.
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