JEE Main 2026 — Dual Nature of Matter Question with Solution
JEE Main 2026 (21 January Shift 1)
Question
A light wave described by (in SI units) falls on a metal surface of work function 2.8 eV. The maximum kinetic energy of ejected photoelectron is (approximately) eV. . s. and
Choose an option
Show full solutionCorrect option: C
Correct answer
C5.1
Step-by-step explanation
Light contains two frequencies: rad/s and rad/s
For maximum KE, use higher frequency .
Energy:
J eV
eV
For maximum KE, use higher frequency .
Energy:
J eV
eV
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This is a previous-year question from JEE Main 2026, covering the Dual Nature of Matter 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.