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[" When the light of frequency "2v_(0)" (where "v_(0)" is "],[" threshold frequency),is incident on a metal "],[" plate,the maximum velocity of electrons "],[" emitted is "v_(1)" .When the frequency of the "],[" incident radiation is increased to "50_(0)" ,the "],[" maximum velocity of electrons emitted from "],[" the same plate is "v_(2)" .The ratio of "v_(1)" to "v_(2)" is "],[[" (a) "1:2," (b) "1:4],[" (c) "4:1," (d) "2:1.(NEET2018)]]

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