What happens to a photoelectron? Does it travel at speed of light? Does ut come back in atom or go forever? How much distance approx it travels? Doesn't the metal become positively charged when photoelectric effect happens?
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A photon is intrinsically a moving thing. If it hits something, it ceases to exist as such and its essence (some energy, some momentum, some spin), together with that of whatever it hits, is rearranged into a new combination of particles subject to various conservation laws. The new combination might still include a photon (as with many scattering events), but it's probably better to imagine the old photon as annihilated and a fresh one with different properties being created. In the case of the photoelectric effect the photon disappears entirely and its energy shows up as k
anonymousx:
thanks! please answer what happens to photoelectron-the electron which is ejected
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