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
$n \propto {u^2}$
$n \propto u$
$n \propto \sqrt u $
$n \propto \frac{1}{u}$
What is physical quantity ? Write its types.
Why do we have different units for the same physical quantity ?
The binding energy of a nucleon in a nucleus is of the order of a few
Oersted is a unit of
The unit of Stefan-Boltzmann s constant $(\sigma )$ is