The dimension of quantity $\frac{L}{RCV}$ is

The dimensional formula of permeability of free space $\mu_0$ is

If $\mathrm{G}$ be the gravitational constant and $\mathrm{u}$ be the energy density then which of the following quantity have the dimension as that the $\sqrt{\mathrm{uG}}$

Match List$-I$ with List$-II.$

List$-I$	List$-II$
$(a)$ Torque	$(i)$ ${MLT}^{-1}$
$(b)$ Impulse	$(ii)$ ${MT}^{-2}$
$(c)$ Tension	$(iii)$ ${ML}^{2} {T}^{-2}$
$(d)$ Surface Tension	$(iv)$ ${ML} {T}^{-2}$

Choose the most appropriate answer from the option given below :

If $L$ and $R$ are respectively the inductance and resistance, then the dimensions of $\frac{R}{L}$ will be

What is dimension of a physical quantity ?