If the maximum kinetic energy of electrons emitted by a photo cell is 5 eV,what is the stopiing potential?

if the maximum k.E. of electrons emitted by a photocell is 4 eV, what is the stopping potential?

Maximum kinectic energy of an emitted photon by a photo cell is 2eV. What is stopping potential?

State the influence of work function on kinetic energy of electrons emitted in a photocell. If the intensity of the incident radiation is doubled, what changes occur in the stopping potential and photoelectric current?

State the dependence of work function on kinetic energy of electrons emitted in a photocell. If the intensity of the incident radiation is doubled, what changes occur in the stopping potential and photoelectric current?

The total energy of an electron in the first excited state of the hydrogen atom is about -3.4 eV. (A) What is the kinetic energy of the electron in this state? (B) What is the potential energy of the electron in this state? (C) Which of the answers above would change if the choice of the zero of potential energy is changed?

If photons of frequency v are incident on the surface of metals A and B of threshold frequencies v/2 and v/3 respectively, the ratio of the maximum kinetic energy of electrons emitted from A to that from B is:

What is photo cell ? State its three applications.