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[" 19.For photoelectric emission from ce...

[" 19.For photoelectric emission from certain metal the "],[" cut off frequency is "v" .If radiation of frequency "2v],[" impinges on the metal plate,the maximum possible "],[" velocity of the emitted electron will be "(m" is the "],[" electron mass): "],[[" (1) "sqrt((hv)/(m))," [NEET-2013] "],[" (3) "2sqrt((hv)/(m))," (4) "sqrt((hv)/(2m))]]

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