Question

Samples of two radioactive nuclides A and B are taken $\lambda_{A}$ and $\lambda_{B}$ are the disintegration constants of A and B respectively in which of the following cases, the two samples can simultaneously have the same decay rate at any time?

• A. Initial rate of decay of A is twice the initial rate of decay of B and $\lambda_{A} = \lambda_{B}$
• B. Initial rate of decay of A is twice the initial rate of decay of B and $\lambda_{A} > \lambda_{B}$
• C. Initial rate ofj decay of B is twice the initial rate of decay if A and $\lambda_{A} > \lambda_{B}$
• D. Initial rate of decay of B is twice the initial rate of decay of A at = 2h and $\lambda_{B} = \lambda_{A}$

Answer 1

Answer: (B)

Initial rate of decay of A is twice the initial rate of decay of B and $\lambda_{A} > \lambda_{B}$

Answer 2

: Initial rate of decay of A is twice the initial rate of decay of B and $\lambda_{A} > \lambda_{B}$