Question

1.) what is the uncertainty for cm and mm
2.) Convert 1.87 ± 0.01 mm to cm

Answer 1

Answer:

Using the Metric Ruler Consider the following standard metric ruler. The ruler is incremented in units of centimeters (cm). The smallest scale division is a tenth of a centimeter or 1 mm. Therefore, the uncertainty Δx = smallest increment/2 = 1mm/2 = 0.5mm = 0.05cm