MCQ
Two radioactive materials $X_1$ and $X_2$ have decay constants 10λ and λ respectively. If initially, they have the same number of nuclei, then the ratio of the number of nuclei of $X_1$ to that of $X_2$ will belie after a time.
- A$1/(10λ)$
- ✓$1/(9λ)$
- C$1/(11λ)$
- D$11/(10λ)$