The light rays having photons of energy `1.8 eV` are falling on a metal surface having a work function `1.2 eV`. What is the stopping potential to be applied to stop the emitting electrons ?

A photon of energy 7 eV is incident on a metal surface having the work function of 3.75 eV. What is the stopping potential ?

A photon of energy 4 eV is incident on a metal surface whose work function is 2 eV. The minimum reverse potential to be applied for stopping the emission of electrons is

A photon of energy 4 eV is incident on a metal surface whose work function is 2 eV . The minimum reverse potential to be applied for stopping the emission of electrons is

A photon of energy 4 eV is incident on a metal surface whose work function is 2 eV . The minimum reverse potential to be applied for stopping the emission of electrons is

A photon of energy 12 V falls on metal surface whose work function is 4.15 eV . The stopping potential is

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

A photon of frequency 1.5xx10^(15) Hz is incident on a metal surface of work function 1.672 eV. Calculate the stopping potential.

Radiation of energy 6.5 eV is incident on a metal surface whose work function is 4.2 eV. What is the potential difference that should be applied to stop the fastest photoelectrons emitted by the metal surface ?