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Q. The dimensional formula of angular momentum is

AIPMTAIPMT 1988Physical World, Units and Measurements

Solution:

Angular momentum $L$
$=$ Moment of inertia $I \times$ Angular velocity $\omega$.
$\therefore $ Dimensional formula $L=\left[ ML ^{2}\right]\left[ T ^{-1}\right]$
$=\left[ ML ^{2} T ^{-1}\right]$