Calculate the velocity of electron ejected from platinum surface when radiation of 200 nm falls on it. Work function of platinum is 5eV. `(1eV=1.6xx10^-19J)`

Calculate the wavelength of an electron in a 10 MeV particle accelerator (1 MeV = 10^6eV) .

Maximum kinetic energy of the released photoelectrons emitted from metallic sodium, when a light is incident on it, 0.73 eV. If the work function of sodium is 1.82eV, find the energy of the incident photon in eV. Find wavelength of incident light. ( h = 6.63 xx 10^(-27) erg. s, 1eV = 1.6 xx 10^(-12) erg)

A stream of photons of energy 10.6 eV and intensity 2.0 W m^(-2) is incident on a platinum surface. Area of the surface is 1.0 xx 10^(-4) m^(2) and its work function is 5.6 eV. 0.53 % of incident photons emit photoelectrons. Find the number of photoelectrons emitted per second and maximum and minimum energies of the emitted photoelectrons in eV. (1eV = 1.6 xx 10^(-19)J)

When the energy of the incident radiation is increased by 20%, the kinetic energy of the photoelectrons emitted from a metal surface increased from 0.5eV to 0.8eV. The work function of the metal is

Calculate the wavelength of radiations in the Lyman series when an electron falls from fourth stationary state of hydrogen atom: (R_H=1.1xx10^7m^-1)

Calculate the maximum kinetic energy of electrons emitted from a photosensitive surface of work function 3.2eV, for the incident radiation of wavelength 300nm.

Find out the photoelectric threshold wavelength of copper. Given work function of copper = 4.52eV, h = 6.6 xx 10^(-34)J.s, 1 eV = 1.6 xx 10^(-19)J

Calculate the kinetic energy of photoelectrons in eV emitted on shining light of wavelength 6.2xx10^(-8)m on a metal surface. The work fuction of metal is 0.1eV. Given: h = 6.6xx10^(-34) J.s .

Calculate the velocity of an electron having wavelength of 0.15 nm Mass of an electron is 9.109xx10^(-28) g (h=6.626 xx10^(-27) erg-s)

Calculate the velocity of an electron having wavelength of 0.15 nm Mass of an electron is 9.109xx10^(-28) g (h=6.626 xx10^(-27) erg-s)