Two radioactive elements A and B initially have the same number o… | JEE Main 2023 Physics PYQ

MCQEasyJEE Main 2023 · 11 April, Shift 1Radioactive Decay & Half-Life

Two radioactive elements A and B initially have the same number of atoms. The half-life of A is the same as the average life of B. If $\lambda_A$ and $\lambda_B$ are the decay constants of A and B respectively, then choose the correct relation from the given options:

A
$\lambda_A = 2\lambda_B$
B
$\lambda_A = \lambda_B$
C
$\lambda_A \ln 2 = \lambda_B$
D
$\lambda_A = \lambda_B \ln 2$

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