Light of energy 4.7 × 10–19 J is irradiated on a metal surface having work function equal to 2.02 eV. The kinetic energy of the emitted photoelectron is (charge of electron = 1.6 × 10–19 C) (1) 0.92 eV (2) 2.68 eV (3) 6.09 eV (4) 4.96
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0.92eV becoz when we divide k.E by the no.of electrons that is 1.6.10^-19we get0.92
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