Question

movement of pencil when drawn a line with the scale​

Answer 1

Answer:

Explanation:

To measure the length of a pencil using a metre rule, place metre rule with its marking close to the object. Let PQ be a pencil.

The end P of the pencil coincides with the zero mark on the ruler. The end Q of the pencil is ready by keeping the eye at the position 'B' vertically above the end Q. So the length of pencil is 4.3cm.