Question

why should a physical quantity be measured​

Answer 1

Q. Why should a physical quantity be measured?

Ans. Physics is a science of measurement. A measurement is a quantitative description of one or more fundamental properties compared to a standard. The measurement of a quantity is mentioned in two parts, the first part gives how many times of the standard unit and the second part gives the name of the unit e.g. 5 m.

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Answer 2

Answer:

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Explanation:

By measuring a physical quantity we define the properties of a material which the physical quantity is associated with