Question

Why does a measurement need both
a 'number' and 'unit' for its complete specifications

Answer briefly​

Answer 1

ANSWER-;

It is important for us to specific both the magnitude and unit to successfully represent the value of a physical quantity as individually either one is meaningless and incomplete.

Answer 2

Answer:

A measurement needs both a number and a unit for complete specification because :

• If we just say 6, the other person will not understand what we mean; hence we have to use a unit of length.

• If we just say metres, the person will wonder how many metres; therefore we have to tell the number to express the right quantity.