An electromagnetic radiation whose electric component varies with time as E=E_0(1+cos omegat)cos omega_0t(omega=6xx10^(15) "rad"//s, omega_0=2.8 xx10^(14) "rad"//s) is incident on a lithium surface (work function =2.39 eV) . The maximum kinetic energy of a photoelectron liberated from the lithium surface is (h=4.14 xx10^(-15) eV-s)

An electromagnetic radiation whose electric component varies with time

1.	An electromagnetic radiation whose electric component varies with time as E=E_0(1+cos omegat)cos omega_0t(omega=6xx10^(15) "rad"//s, omega_0=2.8 xx10^(14) "rad"//s) is incident on a lithium surface (work function =2.39 eV) . The maximum kinetic energy of a photoelectron liberated from the lithium surface is (h=4.14 xx10^(-15) eV-s)
Answer» 2.50eV 1.90eV 1.75 eV 1.50 eV Answer :C

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