JEE Main 2024PhysicsDual Nature of MatterEasyMCQ

JEE Main 2024 — Dual Nature of Matter Question with Solution

JEE Main 2024 (27 Jan Shift 2)

Question

The threshold frequency of a metal with work function 6.63 eV is :

Choose an option

Show full solutionCorrect option: D
Correct answer
D1.6×1015 Hz

Step-by-step explanation

The formula to calculate the work function of the metal is given by

ϕ0=hv0   ...1

From equation (1), it follows that

6.63×1.6×10-19=6.63×10-34v0⇒v0=1.6×10-1910-34⇒v0=1.6×1015 Hz

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About this question

This is a previous-year question from JEE Main 2024, 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.