The equation $\left( {P + \frac{a}{{{V^2}}}} \right)$ $(V - b)$ constant. The units of $a$ are
$Dyne \times c{m^5}$
$Dyne \times c{m^4}$
$Dyne/c{m^3}$
$Dyne/c{m^2}$
Which one of the following pairs of quantities and their units is a proper match
Unit of energy is
How many wavelength of $K{r^{86}}$ are there in one metre
The unit of $e.m.f.$ is
What is unit ? What are fundamental unit and derived unit.