JEE Main & Advanced
Physics
Nuclear Physics And Radioactivity
Question Bank
Self Evaluation Test - Nuclei
question_answer
A mixture consists of two radioactive materials \[{{A}_{1}}\] and \[{{A}_{2}}\] with half-lives of 20 s and 10 s respectively. Initially the mixture has 40 g of \[{{A}_{1}}\] and 160 g of \[{{A}_{2}}\]. The amount of the two in the mixture will become equal after