For the pair production phenomenon to occur the photon must have energy, greater than or equal to _
Correct answer: B. 1.02 MeV
- A. 0.51 MeV
- B. 1.02 MeV
- C. 0.32 MeV
- D. 0.85 MeV
Explanation
In pair production, a proton with energy, greater than or equal to 1.02 MeV is required to create a pair of electron and positron. 1.02 MeV is the minimum required energy for their creation.
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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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