Question

1. how many significant figures are included in the measurement 0.005602 mm?

a. two
b. three
c. four
d. five
e. six

Explanation:

Significant figure rules state that leading zeros (zeros before non-zero digits) are not significant. In 0.005602, the leading zeros are ignored, and the non-zero digits (5,6) and the trailing zero between non-zeros (0) and final non-zero (2) are all significant. Counting these gives 4 significant figures.

Answer:

c. Four