If the radius of earth's orbit is made $1\frac{1}{4}$, the duration of an year will become
If the radius of earth's orbit is made $1\frac{1}{4}$, the duration of an year will become
$8$ times
$4$ times
$\frac{1}{8}$ times
$\frac{1}{4}$ times
If the radius of earth's orbit is made $1\frac{1}{4}$, the duration of an year will become
${T^2} \propto {r^3}.$ If $r$ made half then $T$ will become $\frac{T}{8}.$
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