Explore BrainMass

Explore BrainMass

    Modern Physics: Photoelecric effect and Compton scattering

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    1) plancks constant and work function

    2) photon energy, electron kinetic, direction

    © BrainMass Inc. brainmass.com March 4, 2021, 6:50 pm ad1c9bdddf


    Solution Preview

    Please see the attachment.


    Phototubes operate on the principle of photoelectric effect. This effect is showing the particle nature of the light. When light of sufficiently small wavelength incident on the metal plate, the emission of electrons from the surface of metal takes place. For every metal there is a cut off wavelength called threshold wavelength above that no emission of electrons takes place and the tube is cut-off.

    The energy of photon of light is inversely proportional to the wavelength of light hence energy of photons of the light decreases with the wavelength. If the wavelength of light is larger then threshold wavelength, the photons are not having sufficient energy to extract electrons from the surface of that metal. This minimum energy required to extract electron from the ...

    Solution Summary

    Two basic problems to understand the phenomenon.