Questions
The rate of radioactive disintegration at an instant for a radioactive same of half life 2.2 × 109 s is 1010 s–1. The number of radioactive atoms in that sample at that instant is,
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Correct option is D
dNdt=λN ; dNdt=0.693T1/2N1010=0.6932.2×109NN= 3.17×1019Similar 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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