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[" A photosensitive metallic surface has work function "],[" hvo.If photons of "2hv_(0)" fall on the "1],[" surface,the electrons come out with a maximum "],[" velocity of "4times10^(6)m/s" .If photon energy is increased "],[" to "5hv_(0)" .What will be maximum velocity of "],[" photoelectrons in "m/s" ? "]

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