The minimum energy required by a photon to create an electron-positron pair is:
Correct answer: A. 1.02 MeV
- A. 1.02 MeV
- B. 1.51 MeV
- C. 0.52MeV
- D. 0.051MeV
Explanation
The minimum energy required by a photon to create an electron-positron pair is equal to 1.02 MeV . This process is known as pair production,
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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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