JEE Main 2019 — Structure of Atom Question with Solution
JEE Main 2019 (08 Apr Shift 2)
Question
If is the momentum of the fastest electron ejected from a metal surface after the irradiation of light having wavelength then for momentum of the photoelectron, the wavelength of the light should be:
(Assume kinetic energy of ejected photoelectron to be very high in comparison to work function)
Choose an option
Show full solutionCorrect option: A
Step-by-step explanation
Given
......(i)
…….(ii)
Divide (i) and (ii)
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This is a previous-year question from JEE Main 2019, covering the Structure of Atom chapter of Chemistry. 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.