Question

State any 2 precautions to be observed
while using a metre scale.​

Answer 1

1. place the scale in contact with the object along its length starting from 0. if the zero mark is not clear use any other full mark of the scale.
2. 2 your eye must be exactly in front of the point where the measurement is to be taken

Answer 2

two precautions are as follows :

(i) The initial point of distance must coincide with the zero reading of meter scale.

(ii) The eye should be kept in line with the point of measurement.

$\huge\underline\mathcal\red{Thank You}$