Atoms and Nuclei: JEE Main 2022 Physics question

JEE Main 2022 · 29 Jul, Evening shift · Q52

JEE Main 202229 Jul, Evening shiftPhysicsMediumAtoms and Nuclei183× since 2002

Two radioactive materials A and B have decay constants

25 \lambda

and

16 \lambda

respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of B to that of A will be "e" after a time

\frac{1}{a \lambda}

. The value of a is _________.

Your answerType your answer. Integers and decimals are accepted.

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