Atoms and Nuclei — JEE Main 2021 · 1 Sep, Evening shift · Q6114 · Alror
Atoms and Nuclei
JEE Main 2021 · 1 Sep, Evening shift · Q6114
PhysicsMedium183×since 2002Q6114
The half life period of radioactive element x is same as the mean life time of another radioactive element y. Initially they have the same number of atoms. Then :