Atoms and Nuclei: JEE Main 2019 Physics question

JEE Main 2019 · 10 Apr, Morning shift · Q6092

JEE Main 201910 Apr, Morning shiftPhysicsEasyAtoms and Nuclei183× since 2002

Two radioactive materials A and B have decay constants 10

\lambda

and

\lambda

, respectively. It initially they have the same number of nuclei, then the ratio of the number of nuclei of A to that of B will be 1/e after a time :

JEE Main 2019 · 10 Apr, Morning shift · Q6092

JEE Main 201910 Apr, Morning shiftPhysicsEasyAtoms and Nuclei183× since 2002

Two radioactive materials A and B have decay constants 10

\lambda

and

\lambda

, respectively. It initially they have the same number of nuclei, then the ratio of the number of nuclei of A to that of B will be 1/e after a time :

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