The activity of a sample reduces from $A_0$ to ${A_0} / \sqrt{3}$ in one hour. The activity after $3$ hours more will be
The activity of a sample reduces from $A_0$ to ${A_0} / \sqrt{3}$ in one hour. The activity after $3$ hours more will be
- A
$\frac{{{A_0}}}{{3\sqrt 3 }}$
- B
$\frac{{{A_0}}}{{9 }}$
- C
$\frac{{{A_0}}}{{9\sqrt 3 }}$
- D
$\frac{{{A_0}}}{{27}}$
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$37$ Rutherford equals
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