JEE Main 2026 — Atomic Physics Question with Solution
JEE Main 2026 (24 January Shift 1)
Question
Two electrons are moving in orbits of two hydrogen like atoms with speeds and respectively. If the radii of these orbits are nearly same then the possible order of energy states are respectively.
Choose an option
Show full solutionCorrect option: D
Correct answer
D6 and 5
Step-by-step explanation
For hydrogen-like atoms:
and
Thus
Since the radii are nearly the same:
Possible order of energy states is 6 and 5.
and
Thus
Since the radii are nearly the same:
Possible order of energy states is 6 and 5.
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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.