A) 11.4
B) 3.8
C) 3
D) None of these
Correct Answer: A
Solution :
The fraction of sample remain undecayed, \[\frac{N}{{{N}_{0}}}={{\left( \frac{1}{2} \right)}^{n}}\] \[\frac{1}{8}={{\left( \frac{1}{2} \right)}^{n}}\] \[n=3\] Now, \[t=n\times {{T}_{1/2}}\] \[=3\times 3.8=11.4\text{ }days\]You need to login to perform this action.
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