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A sample of radioactive material decays ...

A sample of radioactive material decays simultaneously by two processes A and B with half-lives `1/2 and 1/4` hours respectively . For first half-hour, it decays with process A, next one hour with process B and for a further half and hour with both A and B. If originally there were `N_0` nuclei, find the number of nuclei after 2 hours of such decay-

A

`(N_0)/((2)^8)`

B

`(N_0)/((2)^4)`

C

`N_0/((2)^6)`

D

`N_0/((2)^5)`

Text Solution

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The correct Answer is:
A
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