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Two radioactive nuclei P and Q in a give...

Two radioactive nuclei P and Q in a given sample decay into a stable nucleus R. At time t=0, number of P species are `4N_0` and that of Q are `N_0`. Half-life of P (for conversion to R) is 1 min whereas that of Q is 2min. Initially there are no nuclei of R present in the sample. When number of nuclei of P and Q are equal, the number of nuclei of R present in the sample would be -

(A) `2N_0`
(B) `3N_0`
(C) `(9N_0)/2`
(D) `(5N_0)/2`

A

`2N_(0)`

B

`3N_(0)`

C

`(9N_(0))/(2)`

D

`(5N_(0))/(2)`

Text Solution

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The correct Answer is:
C
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