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A radioactivity decay is given by A unde...

A radioactivity decay is given by `A underset(t_(1//2)=8yrs)(rarr)B`
Only A is present at `t = 0`. Find the time at which if we are able to pick one atom out of the sample, then probability of getting B is `15` getting a.

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To solve the problem step by step, we will use the concepts of radioactive decay and probability. ### Step 1: Understand the problem We have a radioactive decay process where substance A decays into substance B. The half-life of A is given as 8 years. At time \( t = 0 \), only substance A is present. ### Step 2: Define the probabilities We need to find the time \( t \) at which the probability of picking an atom of substance B is 15 times the probability of picking an atom of substance A. ...
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