Question

What are the three cares in taking measurement of a length? 3

Answer 1

Answer:

A. Ruler should be placed very close to the object along its length.

B. Eye should be kept exactly in front of the point of measurement.

C. Avoid taking readings from the zero mark of the ruler with broken edges.

Explanation:

By Ruler

Answer 2

Answer:

(a) Should be vertically above the 0-mark of the scale

(b) Should be vertically above the point where the measurement is to be taken.

(c) Should be a little away from the point where the measurement is to be taken.

(d) Does not matter as long as the scale is accurate.