The maximum kinetic energy of phtoelectrons emitted from a surface,when photons of energy 6 eV fall on it,is 4 eV.The stpping potential (in volt) is

Find Energy of each photon in eV .

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

Light from a dicharge tube containing hydrogen atoms falls on the surface of sodium.The kinetic energy of the fastest electrons emitted from sodium is 0.73 eV.The work function for sodium is 1.82 eV. Find the energy of the photons causing the photoelectric emission,

Light from a dicharge tube containing hydrogen atoms falls on the surface of sodium.The kinetic energy of the fastest electrons emitted from sodium is 0.73 eV.The work function for sodium is 1.82 eV.find the quantum numbers of the two levels involved in the emission of these photons,

Light from a dicharge tube containing hydrogen atoms falls on the surface of sodium.The kinetic energy of the fastest electrons emitted from sodium is 0.73 eV.The work function for sodium is 1.82 eV.find the recoil speed of the emitting atom assuming it to be at rest before the transmition.(Ionisation energy of hydrogen is 13.6 eV).

Estimate the frequency associated with a photon of energy 2eV.

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

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?

Where from the kinetic energy of falling rain drops come?