Physics - Unit & Dimension Question with Solution | TestHub

The dimensions of angular momentum are

$J=\left[{\mathrm{M}\mathrm{L}}^2{T}^{-1}\right]$

When units of mass, length and time are doubled, than

$J^{\prime }=\left[2\mathrm{M}{\left(2\mathrm{L}\right)}^2{\left(2\mathrm{T}\right)}^{-1}\right]$

$\Rightarrow J^{\prime }=4\left[{\mathrm{M}\mathrm{L}}^2{\mathrm{T}}^{-1}\right]=4 \mathrm{J}$

Unit of angular momentum is quadrupled.