The photoelectric cut-off voltage in a certain experiment is 1.5 V. what is the maximum kinetic energy of the photoelectrons emitted?

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 500 nm falls on a metal whose work function is 1.9 eV. find the kinetic energy of the photo electrons emitted.

Radiation corresponding to the transition n=4 to n=2 in hydrogen atoms falls on a certain metal (work function=2.5 eV). The maximum kinetic energy of the photo-electrons will be:

Photoelectric effect When light of sufficiently small wavelength is incident on a metal cathode, it may emit electsons called photoelectrons. This is called photoelectric effect. Above threshold frequency, the stopping potential and hence the energy of the photoelectrons is directly proportional to the frequency. Slope of graph is given by

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: