The work function of tungsten is 4.50 eV. Calculate the speed of the fastest electrons ejected from a tungsten sur- face when light whose photon energy is 5.80 eV shines on the surface.

The work function of tungsten is 4.50 eV . The wavelength of fastest electron emitted when light whose photon energy is 5.50 eV falls on tungsten surface, is

The work function of tungsten is 4.50 eV . The wavelength of fastest electron emitted when light whose photon energy is 5.50 eV falls on tungsten surface, is

The work function of a metal surface is 4.2 eV. The maximum wavelength which can eject electrons from this metal surface is

(a) If the work function for a certain metal is 1.8 e V, what is the stopping potential for electrons ejected from the metal when light of wavelength 400 nm shines on the metal? (b) What is the maximum speed of the ejected electrons?

Work function of a metal is 2 eV. The maximum wavelength of photons required to emit electrons from its surface is

The photo electric threshold wavelength of Tungsten is 2300 Å. The energy of the electrons ejected from the surface by ultraviolet light of wavelenghth 1800 Å is

The photoelectric threshold wavelength for tungsten is 2400 Å . Determine the energy of the electrons ejected from its surface when exposed to ultraviolet radiations of wavelength 1200 Å .

The K.E. of an electron emitted from tungsten surface is 3.06 eV . What voltage would be required to bring the electron to set.