JEE Main 2024 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 9 April 2024, Shift 2, Physics Q47

Question 47 of 90 in this shift, Physics question 17 of 30, Section A.

UV light of

4.13

eV is incident on a photosensitive metal surface having work function

3.13

eV. The maximum kinetic energy of ejected photoelectrons will be:

(1) $1$ eVOfficial answer
(2) $3.13$ eV
(3) $4.13$ eV
(4) $7.26$ eV

Official answer

Option 1

NTA final key.

Chapter: Dual Nature of Radiation and Matter
Topic: Photoelectric Effect
Idea tested: Einstein's Photoelectric Equation

Same idea in other shifts

Asked 4× in all

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8 Jan 2020, Shift 1 · Q17When photon of energy 4.0 eV strikes the surface of a metal A, the ejected photoelectrons have maximum kinetic energy $T_A$ eV and…MediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.