If photoelectrons emitted by a metl on irradiating it by a light of wave length `lamda` cannot move away farther than a distance 'd' in presence of a retarding electric field E, find threshold wavelength of the metal.

Stopping potential of emitted photo electron is V when monochromatic light of wavelength 'lamda' incident on a metal surface. If wavelength of light incident becomes 'lambda/3' stopping potential of photoelectrons becomes V/4 then the threshold wavelength of metal is k'lambda' then k will be

Stopping potential of emitted photo electron is V when monochromatic light of wavelength 'lamda' incident on a metal surface. If wavelength of light incident becomes 'lambda/3' stopping potential of photoelectrons becomes V/4 then the threshold wavelength of metal is k'lambda' then k will be

A metal plate is exposed to light with wavelength lambda . It is observed that electrons are ejected from the surface of the metal plate. When a retarding uniform electric field E is imposed, no electron can move away from the plate farther than a certain distance d. Then the threshold wavelength lambda_(0) for the material of plate is ( e is the electronic charge, h is Planck's constant and c is the speed of light)

The photo electric work function of a metal is 1 eV. Light of wave length lamda=3000A^(@) falls on it. The velocity of emitted photo electron is approximately

The threshold wavelength of a photosensitive metal is 662.5 nm. If this metal is irradiated with a radiation of wavelength 331.3 nm, find the maximum kinetic energy of the photoelectrons. If the wavelength of radiation is increased to 496.5 nm, calculate the change in maximum kinetic energy of the photoelectrons. (Planck's constant h = 6.625 xx 10^(-34) Js and "speed of light in vacuum" = 3 xx 10^(8)ms^(-1) )

When a certain metal was irradiated with a light of 8.1 xx 10^(16) Hz frequency the photoelectron emitted had 1.5 times the kinetic energy as did the photoelectrons emitted when the same metal was irradiated with light 5.8 xx 10^(16) Hz frequency if the same metal is irradiated with light of 3.846 nm wave length what will be the energy of the photoelectron emitted ?

When a certain metal was irradiated with a light of 8.1 xx 10^(16)Hz frequency, the photoelectron emitted had 1.5 times the kinetic energy as the photoelectrons emitted when the same metal was irradiated with light 5.8 xx 10^(16)Hz frequency. If the same metal is irradiated with light of 3.846nm wave length, what will be the energy of the photoelectron emitted?