There are two radioactive substances A and B. Decay constant of B is two times that of A. Initially, both have equal number of nuclei. After n half-lives of A, rates of disintegration of both are equal. both have equal number of nuclei. After n half-lives of A rates of disintegration of both are equal. There are two radioactive substances A and B. Decay constant of B is two times that of A. Initially October 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related