question_answer

There are n number of radioactive nuclei in a sample that undergoes beta decay. If from the sample, n' number of P- particles are emitted every 2 s, then half- life of nuclei is

A)  \[n'/2\] 

B)  \[0.693\times \left( 2n/n' \right)\]

C)  \[0.693\text{ }In\text{ }\left( 2n/n' \right)\]

D)  \[0.693\times n/n'\]