Q. A physical quantity is measured and its value is found to be nu where $n =$ numerical value and $u =$ unit. Then which of the following relations is true

1981 287 Physical World, Units and Measurements Report Error

A

$n \propto u^{2}$

100%

B

$n \propto u$

0%

C

$n \propto u$

0%

D

$n \propto \frac{1}{u}$

0%

Solution:

$P = n u ∴ n \propto \frac{1}{u}$