Nuclear Physics and RadioactivityMedium
Question
A radioactive sample S1 having an activity 5μCi has twice the number of nuclei as another sample S2 which has an activity of 10 μCi. The half lives of S1 and S2 can be
Options
A.20 years and 5 years, respectively
B.20 years and 10 years, respectively
C.10 years each
D.5 years each
Solution
5μCi = 
(2N0)
10μCi =
Dividing we get T1 = 4T2
(2N0)10μCi =
Dividing we get T1 = 4T2
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