The work functions of metals A and B are in the ratio 1 : 2. If light of frequencies f and 2f are incident on the surface of A and B respectively, the ratio of the maximum kinetic energies of photoelectrons emitted is (f is greater than thershold frequency of A, 2f is greater than threshold frequency of B)

The work functions of metals A and B are in the ratio 1 : 2 . If light of frequencies f and 2 f are incident on the surfaces of A and B respectively , the ratio of the maximum kinetic energy of photoelectrons emitted is ( f is greater than threshold frequency of A , 2f is greater than threshold frequency of B )

Light of wavelength 2000Å is incident on a metal surface of work function 3.0 eV. Find the minimum and maximum kinetic energy of the photoelectrons.

Two photons of energies twice and thrice the work function of a metal are incident on the metal surface .Then, the ratio of maximum velocities of the photoelectrons emitted in the two cases respectively ,is

The photoelectric threshold frequency of a metal is v. When light of frequency 4v is incident on the metal . The maximum kinetic energy of the emitted photoelectrons is

Two sounds A and B are of same amplitudes, same wave forms but of frequencies f and 2f respectively. Then :

Calculate the maximum kinetic energy of photoelectrons emitted when a light of freqency 2xx10 ^(16) Hz is irradiated on a metal surface with threshold frequency (v_0) equal to 8.68 xx 10^(15) Hz.

Calcualte the maximum kinetic energy of photoelectrons emitted where as light of freqency 2 xx 10^(16)Hz is irradiated on a metal surface with threshold frequency (v_(0)) equal to 8.68 xx10^(15)Hz .

Photoelectric emission is observed from a surface for frequencies v_1 and v_2 of the incident radiation ( v_1 gt v_2 ) if maximum kinetic energies of the photo electrons in the two cases are in the ratio 1:K, then the threshold frequency is given by :

Photoelectric emission is observed from a surface for frequencies v_(1) and v_(2) of incident radiations (v_(1) gt v_(2)) . If the maximum kinetic energy of photoelectrons in the two cases are in the ratio of 2 : 1 then threshold frequency v_(0) is given by.

Photoelectric emission is observed from a surface for frequencies v_(1) "and" v_(2) of the incident radiation (v_(1) gt v_(2)) . If maximum kinetic energies of the photo electrons in the two cases are in the ratio 1:K , then the threshold frequency is given by: