Question

Write a short note on two possible errors which can happen while measuring lengths.

Answer 1

The two possible errors which can happen while measureing lengths are:

1) Inclination error - the scale should be kept close to the object without any inclination to achieve the correct measurement of length.
[1 mark]

2) Parallax error - Position of eyes is very important. Measurements should be taken by placing our eyes in a straight line, without any deviation from the line of sight.
[1 mark]