What is the stopping potential of a photocell, in which electrons with a maximum kinetic energy of 6eV are emitted?

On what factor the retarding potential of photocell depends?

The work function of caesium metal is 2.14 eV. When light of frequency 6 xx 10^14 Hz is incident on the metal surface, photomission of electrons occurs. What is the maximum kinectic energy of the emitted electrons.

The stopping potential in an experiment on the photoelectric effect is 1.5 V. What is the maximum kinectic energy of the photoelectrons emitted?

light of wavelength 2200 overset@A (angstorm) falls on photosensitive plate with work function 4.1 eV. Find energy of photon in eV (electron Volt) Find maximum kinetic energy of photoelectron and stopping potetial.