Textbook Guide Physics: Wavenumber, Microwave Oven, Boltzmann Constant

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1 Dec 2016
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PHY131H1 Full Course Notes
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PHY131H1 Full Course Notes
Verified Note
28 documents

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The energy of a photon is expressed as represents the planck constant. represents the frequency of the wave. The electrons ejected from a photoelectric effect are referred to as photoelectrons: the collection of photoelectrons as a flow creates a photoelectric current. ) is the point in potential difference at which the photoelectric current reaches zero: a photoelectric effect will not occur, regardless of the intensity of the incident. If the energy of the absorbed photon is equal to the work function, the electrons barely escape but have no kinetic energy the frequency is at the cutoff frequency. If the energy of the absorbed photon is less than the work function, the electrons cannot escape. 38-3 photons, momentum, compton scattering, light interference: photons have momentum related by energy, frequency and wavelength expressed as: In compton scattering, x-ray beams scatter as particles (as photons) from loosely bound electrons in a target. The x-ray photons lose energy and momentum to the target electron.