JEE Main 2012 — Atomic Physics Question with Solution
JEE Main 2012 (26 May Online)
Question
Which of the plots shown in the figure represents speed of the electron in a hydrogen atom as a function of the principal quantum number ?
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
Velocity of electron in orbit of hydrogen atom is given by :
Substituting the values we get,
As principal quantum number increases, velocity decreases.
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This is a previous-year question from JEE Main 2012, 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.