A) 36 hours
B) 24 hours
C) 12 hours
D) 10 hours
Correct Answer: C
Solution :
: \[\frac{N}{{{N}_{0}}}={{\left( \frac{1}{2} \right)}^{t/T}}\] \[\frac{1}{64}={{\left( \frac{1}{2} \right)}^{t/2}}\] or \[{{\left( \frac{1}{2} \right)}^{6}}={{\left( \frac{1}{2} \right)}^{t/2}}\] or \[\frac{t}{2}=6\] or \[t=12\]hours.You need to login to perform this action.
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