A) 2 hour
B) 1 hour
C) \[\frac{1}{2}hour\]
D) \[\frac{1}{4}hour\]
Correct Answer: C
Solution :
\[N={{N}_{0}}{{\left( \frac{1}{2} \right)}^{t/{{T}_{1/2}}}}\]Þ \[1=16\,{{\left( \frac{1}{2} \right)}^{\frac{2}{{{T}_{1/2}}}}}\] Þ \[{{T}_{1/2}}=\frac{1}{2}hour\]
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