In an experiment tungsten cathode which has a threshold wavelength 2300 `Å` is irradiated by ultraviolet light of wavelength 1800`Å`. Calculate
(a) maximum energy of emitted photoelectronos &
(b) work function of the tungsten

In an experiment tungsten cathode which has a threshold 2300 Å is irradiated by ultraviolet light of wavelength 1800Å . Calculate (i) Maximum energy of emitted photoelectron and (ii) Work function for tungsten. (Mention both the results in electron-volts) Given Planck's constant h=6.6 xx 10^(-34) joule-sec , leV = 1.6 xx 10^(-19) joule and velocity of light c= 3xx10^(8)m//sec

The threshold wavelength of tungsten is 2300 Å. If ultra voilet light of wavelength 1800 Å is incident on it, then the maximum kinetic energy of photoelectrons would be

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 ?

A sheet of silver is illuminated by monochromatic ultraviolet light of wavelength = 1810 Å . What is the maximum energy of the emitted electron ? Threshold wavelength of silver is 2640 Å .

The work function for a metal whose threshold wavelength is 5000 Å is

The photoelectric threshold for a certain metal surface is 3600 Å. If themeal surface is irradiated by a wavelength of 1100 Å, the kinetic energy of the emitted photoelectrons is

A material whose K -absorption edge is 0.2 Å is irradiated by X-ray of wavelength 3644 Å , find the maximum energy of the photoelectrons that are emitted from the K shell.

Light of wavelength 3000Å is incident on a metal surface whose work function is 1 eV. The maximum velocity of emitted photoelectron will be