Radiations of frequencies `v_2 and v_2` are made to fall in turn, on a photosenstive surface. The stopping potential required for stopping the most energetic photoelectrons in the two cases are `V_1 and V_2` respectively. Obtain a formula for determining the threshold freqeuncy in terms of these parameters.

For a monochromatic radiation incident on a metal surface, the stopping potential is 2.0V. Find out the maximum velocity of the emitted photoelectrons.

When light off frequency v_1 is incident on a photosensitive surface , the stopping potential is V_1 . If the frequency of incident radiation becomes v_1//2 the stopping potential changes to V_2 Find out the expression for the threshold frequency for the surface in terms of V_1 and V_2 If the frequency of incident radiation is doubled , will the maximum kinetic energy of the photoelectrons also be doubled ? Given reason .

Photoelectric emission is observed from a surface for frequencies v_1 and v_2 of the incident radiation (v_1 gt v_2) . If the maximum kinetic energies of the photoelectrons in two cases are in ratio 1 : K then the 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 :

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 metallic surface for frequencies v_(1) and v_(2) of the incident light. If the maximum value of kinetic energies of the photoelectrons emitted in the two cases are in the ratio n:1 then the threshold frequency of the metallic surface is

When a 6000Å light falls on the cathode of a photo cell and produced photoemission. If a stopping potential of 0.8 V is required to stop emission of electron, then determine the threshold frequency