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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

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 

Grade:11

1 Answers

Arun
25750 Points
5 years ago
The answer is  n ∝ 1/u
Reason/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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