The physical quantity $'$Energy Density$'$ has same dimensional formula as

Select the pair whose dimensions are same

Which of the following physical quantities has a unit but no dimensions ?

Match List $I$ with List $II$

LIST$-I$	LIST$-II$
$(A)$  Torque	$(I)$    $ML ^{-2} T ^{-2}$
$(B)$   Stress	$(II)$   $ML ^2 T ^{-2}$
$(C)$   Pressure of gradient	$(III)$   $ML ^{-1} T ^{-1}$
$(D)$   Coefficient of viscosity	$(IV)$   $ML ^{-1} T ^{-2}$

Choose the correct answer from the options given below

Dimensional formula for angular momentum is

In terms of resistance $R$ and time $T$, the dimensions of ratio $\frac{\mu } {\varepsilon }$ of the permeability $\mu $ and permittivity $\varepsilon $  is