When photons of energy 5 eV fall on a photosensitive surface, the maximum K.E. of the photoelectrons emitted from the surface is 2.5 eV. What is the stopping potential ?

When radiation of wavelength 3000 Å is incident on a photosensitive surface, the maximum K.E. of the photoelectrons is 2.5 eV. What is the stopping potential if radiation of wavelength 1500 Å is incident on the same surface ?

A photon of energy 2 E is incident on a photosensitive surface of photoelectric work function E. The maximum K.E. of photoelectron emitted is

When light of energy 2.5 eV falls on a metal surface, the maximum K.E. of the emitted electrons is T. If the radiation of energy 4eV is made incident on the same metal surface, the K.E. of the electrons is doubled. What is the work function of the metal ?

The maximum kinetic energy of a photoelectron is 3 eV. What is its stopping potential ?

The maximum kinetic energy of a photoelectron is 3 eV. What is its stopping potential ?

If photons of energy 6eV are incident on a metallic surface, the kinetic energy of fastest electrons becomes 4eV. What is the value of the stopping potential?

The maximum kinetic energy of photoelectrons emitted from a surface when photons of energy 6eV fall on it is 4eV. The stopping potential is: