1. What is meant by the ‘unit’ of a physical quantity? What factors should to be taken in to consideration while seeking a unit ?
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The measurement of a base quantity involves two steps: first, the choice of a standard, and second, the establishment of a procedure fro comparing the quantity to be measured with the standard so that a number and a unit are determined as the measure of that quantity.
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A physical quantity is a property of a material or system that can be quantified by measurement. ... For example, the physical quantity mass can be quantified as n kg, where n is the numerical value and kg is the unit.
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