A light beam of wavelength 400 nm is incident on a metal plate of work...
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A light beam of wavelength 400 nm is incident on a metal plate of work function 2 2 eV A particular electron absorbs a photon and makes some collisions before coming out of the metal Assuming that 10 of the instantaneous energy is lost to the metal in each collision find the minimum number of collisions the electron can suffer before it becomes unable to come out of metal use hc 12400 eV
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