Two radioactive materials X1 and X2 have decay constants 5 λ and λ, respectively. If initially they have the same number of nuclei, the ratio of the number of nuclei of X1 to that of X2 will be 1/e after a time respectively. If initially they have the same number of nuclei the ratio of the number of nuclei of X1 to that of X2 will be 1/e after a time Two radioactive materials X1 and X2 have decay constants 5 λ and λ August 22, 2020 Category: Chapter 30 - Atoms , Chapter 31 - Nuclei , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related