Ratio of masses and radii of two circular rings are $1 : 2$ and $2 : 1$ respectively then ratio of moment of inertia will be
Ratio of masses and radii of two circular rings are $1 : 2$ and $2 : 1$ respectively then ratio of moment of inertia will be
- A
$1 : 4$
- B
$2 : 1$
- C
$4 : 1$
- D
$\sqrt 2 : 1$
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