Consider a metal exposed to light of wavelength 600 nm. The maximum energy of the electron doubles when light of wavelength 400 nm is used. Find the work function in eV.

The threshold wavelength of a metal is 1243 nm its work function will be

The frequency of yellow light having wavelength 600 nm is ____Hz.

An electron and a photon each have a wavelength of 1.00 nm. Find the kinetic energy of electron .

An electron and a photon each have a wavelength of 1.00 nm. Find their momenta .

An electron and a photon each have a wavelength of 1.00 nm. Find the energy of the photon .

The photoelectric work function of a surface is 2.2 eV. The maximum kinetic energy of photoelectrons emitted when light of wavelength 6200 Å is incident on the surface, is

Calculate the energy of a photon, in joule and eV, in a light of wavelength 5000 overset@A .

When a metal surface is illuminated by light wavelengths 400 nm and 250 nm , the maximum velocities of the photoelectrons ejected are upsilon and 2 v respectively . The work function of the metal is ( h = "Planck's constant" , c = "velocity of light in air" )