If activity of a radioactive substance is Ro at time t 0 and

Last updated: 6/11/2023

If activity of a radioactive substance is Ro at time t 0 and R at t 10 hours then the time in hours at which the activity reduces to half 5 log10 2 5 loge 2 5 log 2 5 log 2 2 of its initial value is