JEE Main 2022 — Structure Of Atom Question with Solution
From: JEE Main 2022 (Online) 28th June Morning Shift
Question
If the work function of a metal is 6.63 1019J, the maximum wavelength of the photon required to remove a photoelectron from the metal is ____________ nm. (Nearest integer)
[Given : h = 6.63 1034 J s, and c = 3 108 m s1]
Enter your answer
Show full solutionCorrect answer: 300
Step-by-step explanation
Given,
Work function = 6.63 1019 J
= 4.14 eV
We know,
= 300 nm
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Structure Of Atom chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2022, 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.