Questions
Half life of a radio active material is 5 hours. Then after what time number of undecayed nucleus of a sample of the radio active material will be equal to two times the number of decayed nucleus?
detailed solution
Correct option is D
N0e−λt=2N01−e−λt⇒32e−λt=1⇒eλt=32⇒t=ln 32λ=T×ln3−ln2ln2Talk to our academic expert!
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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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