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

Option B - 2

Explanation:

Given :The length of a spring when it’s at rest is measured to be 0.56 centimeter.

To find : How many significant figures are there in this measurement?

Solution :

There are two important rules to find the significant figure :

1) Non-zero digits are always significant.

2) Leading zeroes in front of decimal points are not significant.

Therefore, In the given measurement 0.56 cm.

There are only two significant figures.

So, Option B is correct.