A physical quantity is measured and the result is expressed as \( n u \) where \( u \) is the un...

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A physical quantity is measured and the result is expressed as \( n u \) where \( u \) is the unit used and \( n \) is the numerical value. If the result is expressed in various units then
(a) \( n \propto \) size of \( u \)
(b) \( n \propto u^{2} \)
(c) \( n \propto \sqrt{u} \)
(d) \( n \propto \frac{1}{u} \).
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