Two particles of equal masses are revolving in circular paths of radii ${r_1}$ and ${r_2}$ respectively with the same speed. The ratio of their centripetal forces is
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(a)$F = \frac{{m{v^2}}}{r}.$ If $m$ and $v$ are constants then
$F \propto \frac{1}{r}$
$\frac{{{F_1}}}{{{F_2}}} = \left( {\frac{{{r_2}}}{{{r_1}}}} \right)$
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