JEE Main 2025 — Nuclear Physics Question with Solution
JEE Main 2025 (23 Jan Shift 1)
Question
A radioactive nucleus has 3 times the decay constant as compared to the decay constant of another radioactive nucleus . If initial number of both nuclei are the same, what is the ratio of number of nuclei of to the number of nuclei of , after one half-life of ?
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Nuclear Physics chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2025, covering the Nuclear Physics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.