JEE Main 2013 — Nuclear Physics Question with Solution
JEE Main 2013 (22 Apr Online)
Question
The half-life of a radioactive element is the same as the mean-life of another radioactive element B. Initially both substances have the same number of atoms, then :
Choose an option
Show full solutionCorrect option: D
Correct answer
D will decay at a faster rate than .
Step-by-step explanation
or
Also rate of decay
Initially number of atoms of both are equal but since , therefore will decay at a faster rate than
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 2013, 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.