Consider a radioactive material of half-life $1.0 \, minute$. If one of the nuclei decays now, the next one will decay
Consider a radioactive material of half-life $1.0 \, minute$. If one of the nuclei decays now, the next one will decay
- A
After $1$ minute
- B
After $\frac{1}{{{{\log }_e}\,2}}$ minute
- C
After $\frac{1}{N}$ minute, where $N$ is the number of nuclei present at that moment
- D
After any time
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- [JEE MAIN 2022]
At any instant, two elements $X _1$ and $X _2$ have same number of radioactive atoms. If the decay constant of $X _1$ and $X _2$ are $10 \lambda$ and $\lambda$ respectively. then the time when the ratio of their atoms becomes $\frac{1}{e}$ respectively will be
At any instant, two elements $X _1$ and $X _2$ have same number of radioactive atoms. If the decay constant of $X _1$ and $X _2$ are $10 \lambda$ and $\lambda$ respectively. then the time when the ratio of their atoms becomes $\frac{1}{e}$ respectively will be
- [IIT 2000]