What is the rest mass energies for electron, Ee and positron, Ep?
Correct answer: D. Ee= 0.51 MeV, Ep=0.51 MeV
- A. Ee= 1.02 MeV, Ep=1.02 MeV
- B. Ee= 0.51 MeV, Ep=1.02 MeV
- C. Ee= 1.02 MeV, Ep=0.51 MeV
- D. Ee= 0.51 MeV, Ep=0.51 MeV
Explanation
The explanation is given below: The rest mass energy for both electron and positron is 0.51 MeV.
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About Photons and the Particle Model of Light
The particle model treats light as photons with energy E equals hf and momentum related to wavelength. Questions involve the photoelectric effect, work function, threshold frequency, stopping potential and photon energy, while distinguishing particle behaviour from the wave description of interference and diffraction.
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