Light of wavelength 2200 Å falls on a metal surface . If 4.1 eV energy is required to remove the electron , find the stopping potential .

Light of wavelength 2000 Å falls on an aluminium surface . In aluminium 4.2 e V of energy is required to remove an electron from its surface. What is the kinetic energy , in electron volt of (a) the fastest and (b) the slowest emitted photo-electron . ( c) What is the stopping potential ? (d) What is the cut - off wavelength for aluminum? (Plank's constant h = 6.6 xx 10^(-34) J-s and speed of light c = 3 xx 10^(8) m s^(-1).

Light of wavelength 2000 Å falls on an aluminium surface . In aluminium 4.2 e V of energy is required to remove an electron from its surface. What is the kinetic energy , in electron volt of (a) the fastest and (b) the slowest emitted photo-electron . ( c) What is the stopping potential ? (d) What is the cut - off wavelength for aluminum? (Plank's constant h = 6.6 xx 10^(-34) J-s and speed of light c = 3 xx 10^(8) m s^(-1).

Light of wavelength 2000 Å falls on a metallic surface whose work function is 4.21 eV. Calculate the stopping potential

Light of wavelength 2000 Å falls on a metallic surface whose work function is 4.21 eV. Calculate the stopping potential

Light of wavelenght 5000 Å fall on a metal surface of work function 1.9 eV Find a. The energy of photon

Light of wavelength 3320 Å incidents on metal surface (work function = 1.07 eV ). To stop emission of photo electron, retarding potential required to be -

A photon of wavelength 1000 Å has energy 12.3 eV . If light of wavelength 5000 Å , having intensity I, falls on a metal surface, the saturaion current is 0.40 mu A and the stopping potential is 1.36 V . The work function of metal is

Light of wavelength 500 nm falls on a metal whose work function is 1.9 eV. find the energy of the Photon in eV