Questions
A sample of radioactive element has a mass of 10 gm at an instant t = 0.The approximate mass of this element in the sample after two mean lives is
detailed solution
Correct option is D
M=M0e-λt; given t=21λ ⇒M=10e-λ2λ=101e2⇒M=1.35 gmTalk 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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