Physics

Physics, 29.06.2019 12:50, bellbradshaw16

What happens when an electron absorbs a photon

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Physics, 10.07.2019 23:20, abigail018

Show that the differential cross section for the photoelectric effect in which an electron in the ground state of hydrogen is ejected when the atom absorbs a photon is given by h ky(e k = 320 mw do [(1/a)+qr where q ki kf. assume the ejected electron is sufficiently energetic that the wave function for the electron can be taken to be the plane wave ekr (rlk) v where p hk, is the momentum of the electron and ak, is the momentum of the incident photon. suggestion: the cross section is the transition rate divided by the incident photon flux, which is equal to c/v in the box normalization used in this chapter.

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Physics, 27.08.2019 16:20, kyle65

The next two questions are related: 16. an electron is confined in a 3-dimensional rectangular box (v = 0 inside, and v = 8outside) with sides l = 4 nm, 4 nm, and 5 nm. what minimum energy, e_, must a photon havein order to excite the electron out of its ground state. (the electron absorbs the photon.)a. e_ = 0.015 evb. e_ = 0.045 evc. e_ = 0.071 evd. e_ = 0.125 eve. e_ = 0.241 ev17. now we put 10 electrons into the box. assuming the total energy of the system is as low aspossible, and including the effects of spin, how many electrons have the energy of the secondexcited state? a. noneb. 1c. 2d. 4e. all 10

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Physics, 27.08.2019 17:10, leo4687

An electron is confined in a 3-dimensional rectangular box (v = 0 inside and v = [infinity] outside) with sides l = 4 nm, 4 nm and 5 nm. what minimum energy e must a photon have in order to excite the electron out of its ground state. (the electron absorbs the photon.)

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Physics, 30.09.2019 18:10, nawafcanada

When an electron in an atom goes from a lower energy state to a higher energy state, the atom a. can emit a photon of any frequency. b. absorbs several photons of a specific frequency. c. emits a photon of a specific frequency. d. can absorb a photon of any frequency. e. absorbs a photon of a specific frequency. f. produces a continuous spectrum. g. produces an emission spectrum.

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