A) 1 : 4
B) 1 : 2
C) 1 : 3
D) 1 : 6
Correct Answer: A
Solution :
[a] T=4 year \[{{t}_{{}^{1}/{}_{2}}}=1\,year\,{{t}_{{}^{1}/{}_{2}}}=2year\] \[n=\frac{T}{{{t}_{{}^{1}/{}_{2}}}}=4n=\frac{4}{2}=2\] \[{{N}_{1}}={{N}_{o}}{{\left[ \frac{1}{2} \right]}^{4}}{{N}_{2}}={{N}_{o}}{{\left[ \frac{1}{2} \right]}^{2}}\] \[\frac{{{N}_{1}}}{{{N}_{2}}}=\frac{1}{4}\]You need to login to perform this action.
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