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 light photoelectrons, 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 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):
Light of wavelength 200 nm incident on a metal surface of threshold wavelength 400 nm kinetic energy of fastest photoelectron will 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 :
A light of wavelength 600 nm is incident on a metal surface. When light of wavelength 400 nm is incident, the maximum kinetic energy of the emitted photoelectrons is doubled. The work function of the metals is
Maximum kinetic energy of photoelectrons emitted from a metal surface, when light of wavelength lambda is incident on it, is 1 eV. When a light of wavelength lambda/3 is incident on the surfaces, maximum kinetic energy becomes 4 times. The work function of the metal is
Light of wavelength 4000 Å is incident on a metal surface. The maximum kinetic energy of emitted photoelectron is 2 eV. What is the work function of the metal surface ?
The kinetic energies of the photoelectrons ejected from a metal surface by light of wavelength 2000 Å range from zero to 3.2 xx 10^(-19) Joule. Then find the stopping potential (in V).
