Questions
A freshly prepared radioactive source of half life 2 hr emits radiation of intensity which is 64 times the permissible sale level. the minimum time after which it would be possible to work safely with this source is
detailed solution
Correct option is B
NN0=12t/T or 164=12t/T or 126=12t/T or tT=6 t=6T or t=6×2=12Talk 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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