Physics · Nuclear Physics
JEE Main 2025 — 4 April, Evening Shift — Question 54
A radioactive material first decays into and then decays to non-radioactive material . Which of the following figure represents time dependent mass of , and ?
- Option A:

- Option B:

- Option C:Correct

- Option D:

Answer: C
Step-by-step solution
Final mass of will be equal to initial mass of and mass of
is continuously decreasing with time
Answer key and solution verified before publishing.
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- Exam
- JEE Main 2025
- Subject
- Physics
- Chapter
- Nuclear Physics
- Topic
- Laws of Radioactive Decay