If you have a pair of vernier callipers which have divisions of 0.05mm what would the absolute error be?

YOu can read one digit past the divisions.

See: http://dev.physicslab.org/Document.aspx?doctype=3&filename=IntroductoryMathematics_SignificantFigures.xml

To find the absolute error in a measurement using a pair of vernier calipers, you need to consider the resolution of the calipers. In this case, the divisions of the calipers are given as 0.05mm.

The absolute error can be calculated as half of the smallest division. For a vernier caliper, this means dividing the division value by 2.

Absolute error = 0.05mm / 2
= 0.025mm

Therefore, the absolute error in this case would be 0.025mm.