JEE Main 2026 — Atomic Physics Question with Solution
JEE Main 2026 (21 January Shift 1)
Question
If an alpha particle with energy 7.7 MeV is bombarded on a thin gold foil, the closest distance from nucleus it can reach is m. (Atomic number of gold and in SI units)
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
At closest approach, KE converts to PE:
m
m
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This is a previous-year question from JEE Main 2026, covering the Atomic 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.