The half-life of a radioactive nuclide is 20 h. What fraction of original activity will remain after 40 h? The half-life of a radioactive nuclide is 20 h. What fraction of original activity will remain after 40 h? September 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related