Viteee
Atoms And Nuclei
VITEEE 2023
MCQ+4 / -12023
The activity of a radioactive sample is measured as No counts per minute at \(t=0\) and \(\mathrm{N}_0 / \mathrm{e}\) counts per minute at \(t=6 \mathrm{~min}\). The time (in minutes) at which the activity reduces to half its value is.