The activity of a radioactive sample is measured as 9750 counts / minute at t=0 and as 975 counts / minute at t=5 minutes. The decay constant is approximately The activity of a radioactive sample is measured as 9750 counts / minute at t=0 and as 975 counts / minute at t=5 minutes. The decay constant is approximately August 16, 2020 Category: Chapter 31 - Nuclei , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related