Questions
A radioactive element emits 200 particles per second. After three hours 25 particles per second are emitted. The half-life period of element will be
detailed solution
Correct option is B
R=dNdt∝N⇒R2R1=N2N1 But N2N1=12t/(t1/2)⇒25200=18=123⇒tt1/2=3 ∴t1/2=t3=33=1 hour=60 minutesTalk 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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