JEE Main 2019 — Structure Of Atom Question with Solution
From: JEE Main 2019 (Online) 11th January Evening Slot
Question
The de Broglie wavelength () associated with a photoelectron varies with the frequency (v) of the incident radiation as, [v0 is threshold frequency] :
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
By photoelectric effect
KE = h - ho ....(1)
de broglie wavelength,
= = ...(2)
Using equation (1) and (2), we get
=
KE = h - ho ....(1)
de broglie wavelength,
= = ...(2)
Using equation (1) and (2), we get
=
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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.