If p is the momentum of the fastest electron ejected from a metal surface after the irradiation of light having wavelength `lambda` then for 1.5 p momentum of the photoelectron, the wavelength of the light should be: (Assume kinetic energy of ejected photoelectron to be very high in comparison to work function):

If p is the momentum of the fastest electron ejected from a metal surface after the irradiation of light having wavelength i, then for 1.5 p momentum of the photoelectron, the wavelength of the light should be (assume kinetic energy of ejected photoelectron to be very high in comparison to work function):

If p is the momentum of the fastest electron ejected from a metal surface after the irradiation of light having wavelength lamda , then for 1.5 p momentum of the photoelectron, the wavelength of the light should be ( 4 ) /(a) lamda . What is numerical value of a ? (Assume kinetic energy of ejected photoelectron to be very high in comparison to work function):

Light of wavelength 2000 Å can just eject electrons from a metal surface. Calculate the work function of the metal.

The work function for a metal is 4 eV. To eject the photo electrons with zero velocity the wavelength of the incident light should be

The work function for a metal is 4 eV. To eject the photo electrons with zero velocity the wavelength of the incident light should be

The surface of a metal is illuminted with the light of 400 nm The kinetic energy of the ejection photoelectron was found to be 1.68 eV The work function of the metal is :

The work function of a metal is 3.4 eV. A light of wavelength 3000Å is incident on it. The maximum kinetic energy of the ejected electron will be :

The work function of a metal is 3.4 eV. A light of wavelength 3000Å is incident on it. The maximum kinetic energy of the ejected electron will be :