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A physical quantity is measured and the result is expressed as nu where u is the unit used and n is the numerical value. If the result is expressed in various units then
The answer is n ∝ 1/uReason/Explanation:- -Let us take an example of mass ,suppose if a body has a mass of 20 kg . (In this 20 is the numerical value and kg is the unit) So if we decrease the size of the unit , Say kg to g then the numerical value will be 20000. 20 kg = 20000 g.-If the size of the unit Kg will be increased from kg to Quintal then the numerical value will be 0.2 .20 kg = 0.2 Quintal.from this example we can say that if the unit is increasing then the numerical value is decreasing & if the unit is decreasing then the numerical value of is increasing.∴ numerical value, n ∝ 1/u
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