Dual Nature of Matter and Radiation: JEE Main 2026 Physics question

JEE Main 2026 · 21 Jan, Morning shift · Q45

JEE Main 202621 Jan, Morning shiftPhysicsMediumDual Nature of Matter and Radiation146× since 2002

A light wave described by

E=60[\sin(3\times10^{15})t+\sin(12\times10^{15})t]

(in SI units) falls on a metal surface of work function 2.8 eV. The maximum kinetic energy of ejected photoelectron is (approximately) ______ eV. (

h=6.6\times10^{-34}

J.s. and

e=1.6\times10^{-19}

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JEE Main 2026 Dual Nature of Matter and Radiation Question with Solution (21 Jan Morning shift, Q45) | JEE Arc

JEE Main 2026 · 21 Jan, Morning shift · Q45

JEE Main 202621 Jan, Morning shiftPhysicsMediumDual Nature of Matter and Radiation146× since 2002

A light wave described by

E=60[\sin(3\times10^{15})t+\sin(12\times10^{15})t]

(in SI units) falls on a metal surface of work function 2.8 eV. The maximum kinetic energy of ejected photoelectron is (approximately) ______ eV. (

h=6.6\times10^{-34}

J.s. and

e=1.6\times10^{-19}