Nuclear Physics and RadioactivityEasy
Question
If N0 is the original mass of the substance of half - life period t1/2 = 5 years, then the amount of substance left after 15 years is
Options
A.N0/8
B.N0/16
C.N0/2
D.N0/4
Solution
Amount left = N0/2n = N0/8 (Here n = 15/5 = 3)
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