Question

The radius of wire is measured to be 0.0405×10^-3m. The number of significant figures in the measurement is

Answer 1

Explanation:

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Answer 2

Answer: The answer to this question is-

The number of significant figures in the measurement is Three (3).

0.0405×$10^{-3}$

Explanation:

Rules that are important for Significant Figures

1. A number is important if it contains only non-zero digits. There are six significant digits in 198745.

2. Zeros are important if they come between any two non-zero digits. For instance, the number 108.0097 has seven significant digits.

3. None of the zeros that are present to the left of a non-zero digit and to the right of a decimal point will ever be relevant. For instance, the number 0.00798 had three significant digits.

4.Only if a non-zero digit does not come after all the zeros to the right of a decimal point are they considered significant. For instance, the number 20.00 has four significant digits.

5.If there are zeros after the decimal point on the right of the final non-zero digit, then they are all significant.

6. All zeros to the right of the final non-zero digit are meaningful if they represent the result of a measurement. 1090 m, for instance, has four significant digits.

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