Which of the following is the unit of specific heat
$J/kg\,^\circ C$
$J\,kg\,^\circ {C^{ - 1}}$
$kg\,^\circ C/J$
$J/kg\,^\circ {C^{ - 2}}$
Which of the following is not a unit of energy
The unit of potential energy is
The surface tension of a liquid is $70\,dyne/cm$. In $MKS$ system its value is
The unit of surface tension in $SI$ system is