Two monochromatic radiations blue and violet of the same intensity are incident on a photosensitive surface cause photoelectric emission. Would the maximum kinetic energy of the electrons be equal in the two cases? justify

Ultraviolet light is incident on two photosensitive materials, having work functions W_1 and W_2 , where W_1 > W_2 . In which case will the kinetic energy of emitted electrons be greater? Why?

Draw a plot showing the variation of photoelectric current versus the intensity of incident radiation on a given photosensitive surface.

Photons of frequency v are incident on the surfaces of two metals A and B of threshold frequencies 3/4v and 2/3 v respectively. The ratio of the maximum kinetic energy of electrons emitted from A to B is

If photons of frequency v are incident on the surface of metals A and B of threshold frequencies v/2 and v/3 respectively, the ratio of the maximum kinetic energy of electrons emitted from A to that from B is:

Light of intensity 10^-5 Wm^-2 falls on a sodium photocell of surface area 2 cm^2 . Assuming that the top 5 layers of sodium absorb the incident energy, estimate the time required for photoelectric emission on the wave picture of radiation. The work function for the metal is given to be about 2 eV. what is the implication of your answer?

An electron and a proton are possessing same amount, of kinetic energy. WHich of two has a greater De Brogile wavelength? Justify your answer.

The figure shows the stopping potential for the phototelectron versus (1/lambda) graph for two metals A and B, lambda being the wavelength of incident light If the distance between the light source and the surface of metal A is increased, how will the stopping potentail for the electrons emitted from it be affected? justify your answer.