The unit of surface tension in $SI$ system is
$Dyne/c{m^2}$
$Newton/m$
$Dyne/cm$
$Newton/{m^2}$
Which of the following system of units is not based on units of mass, length and time alone
Which of the following is a derived unit
What is $1$ radian ? What is $1$ steradian ?
The unit of Stefan-Boltzmann s constant $(\sigma )$ is
The surface tension of a liquid is $70\,dyne/cm$. In $MKS$ system its value is