The activity of a radioactive sample is measures as `N_0` counts per minute at
Channel: Doubtnut
Date: 19/01/2020

The activity of a radioactive sample is measures as `N_0` counts per minute at `t = 0` and `N_0//e` counts per minute at `t = 5 min`. The time (in minute) at which the activity reduces to half its value is.