Q.
In a certain nuclear reactor, a radioactive nucleus is being produced at a constant rate =1000/s. The mean life of the radionuclide is 40 minutes. At steady state the number of radionuclide will be
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a
4×104
b
24×104
c
24×105
d
24×106
answer is C.
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Detailed Solution
at steady state. Rate of disintegration is equal to rate of production.1000=Nλλ=1Tmean1000=N40×60N=40×60×103=24×105
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