Questions
Certain radio-active substance reduces to 25% of its value in 16 days. Its half-life is
a
32 days
b
8 days
c
64 days
d
28 days
detailed solution
Correct option is B
N=N012tT⇒N04=N01216T⇒T=8 days.Talk to our academic expert!
Similar Questions
The half life period of a radioactive element X is same as the mean life time of another radioactive element Y. Initially both of them have the same number of atoms. Then
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