Thus the angular momentum (L) has the same dimensions as that of Planck's constant (h)

\((B)\): Impulse \(I =\Delta P\)

Thus impulse \((I)\) has the same dimensions as that of linear momentum \((P)\)

\((C)\): Using \(\tau=I \alpha \quad \Rightarrow I=\frac{\tau}{\alpha}\)

where angular acceleration is not dimensionless.

Thus the dimensions of moment of inertia are different from those of

moment of force

(OR torque)

\((D):\) Dimension of energy \(E =\left[ ML ^2 T ^{-2}\right]\)

Dimension of torque \(\tau= Fr =\left[ ML ^2 T ^{-2}\right]\)

Hence, torqua and energy have same dimensions.