Question

The length of a spring when it’s at rest is measured to be 0. 56 centimeter. How many significant figures are there in this measurement? A. 3 B. 2 C. 1 D. 0.

Answer 1

The Length of a spring when it’s at rest is measured to be 0. 56cm , measurement will be Two.

Given:  the Length of a spring when at rest will be 0.56 centimeter.

To find how many significant figures are there in given measurement

Some rules to check the significant figures are :-

• Non-zero digits are significant always.

• Between any two significant digits if any zero then are significant.

• Final zero or Trailing zero in the decimal part are significant only.

• The measurement given here is 0.56 cm.

Here, it has Two Trailing zeros in the decimal 5 & 6.

Therefore,  Only 2  significant figures are there in the measurement.

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