A radioactive substance decays to 1/16th of its initial activity in 40 days. The half‐life of the radioactive substance expressed in days is A radioactive substance decays to 1/16th of its initial activity in 40 days. The half‐life of the radioactive substance expressed in days is November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 31 - Nuclei , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related
