A photon of wavelength ` 4 xx 10^(-7) m` strikes on metal surface , the work function fo
Channel: Doubtnut
Date: 2020-08-02

A photon of wavelength ` 4 xx 10^(-7) m` strikes on metal surface , the work function fo the metal being ` 2. 13 eV` Calculate :  (i) the energy of the photon (ev)  (ii) the kinetic energy fo the emission and  the velocity fo the photoelectron  `( 1 eV = 1 , 6020 xx 10^(-19) J)`,