[" 16.Threshold frequency of metal is "f_(0)" .When light "],[" of frequency "v=2f_(0)" is incident on the metal "],[" plate,velocity of electron emitted in "V_(1)" .When "],[" a plate frequency of incident radiation is "5f_(0)" ,"],[V_(2)" is velocity of emitted electron,then "],[V_(I):V_(2)" is "],[[" 1) "1:4," 2) "1:2," 3) "2:1," 4) "4:1]]

The threshold frequency of a metal is f_(0) . When the light of frequency 2f_(0) is incident on the metal plate, the maximum velocity of electrons is v_(1) . When the frequency of the incident radiation is increased to 5f_(0) , the maximum velocity of electron emitted is v_(2) . Find the ratio of v_(1) to v_(2) .

The threshold frequency of a metal is f_0 . When the light of frequency 2f_0 is incident on the metal plate, the maximum velocity of electrons emitted is v_1 . When the frequency of the incident radiation is increased to 5f_0 , the maximum velocity of electrons emitted is v_2 . Find the ratio of v_1 andv_2 .

The threshold frequency for certain metal is v_0 . When light of frequency 2v_0 is incident on it, the maximum velocity of photoelectrons is 4xx10^(6) ms^(-1) . If the frequency of incident radiation is increaed to 5v_0 , then the maximum velocity of photoelectrons will be

The threshold frequency for certain metal is v_0 . When light of frequency 2v_0 is incident on it, the maximum velocity of photoelectrons is 4xx10^(6) ms^(-1) . If the frequency of incident radiation is increaed to 5v_0 , then the maximum velocity of photoelectrons will be

Define the term work function of a metal. The threshold frequency of a metal is f_0 when the light of frequency 2f_0 is incident on the metal plate, the maximum velocity of electrons emitted is v_1 , when the frequency of the incident radiation is increased to 5f_0 , the maximum velocity of electrons emitted is v_2 . Find the ratio of v_1 and v_2 .

The threshold frequency for a certain metal is v_(0) when light of frequency v = 2v_(0) is incident on it . The maximum velocity of photoelectrons is 4 xx 10^(6) m/s . If the frequency of incident radiation is increase to 5 v_(0) , the maximum velocity of photo electrons in m/s will be .

The photoelectric threshold frequency of a metal is v_0. When ligth of frequency 3v_0 is incident on the metal, the maximum kinetic energy of emitted photoelectrons will be