Question

State S.I. unit of angular momentum. Obtain its dimensions.

Answer 1

SI Unit of angular momentum $kg{m}^2/s$
Angular momentum $=\text{moment of inertia}\times \text{Angular velocity}....\left(1\right)$
Dimensional formula of moment of inertia
$=M^1{L}^2{T}^0$
Dimensional formula of Angular velocity $=M^0{L}^0{T}^{-1}$
Putting these values in above eq. $\left(1\right)$
So dimensional formula of angular momentum $=M^1{L}^2{T}^{-1}$