Reverse process of photoelectric effect is_______________?
Correct answer: D. X-rays production
- A. pair production
- B. Compton effect
- C. annihilation of matter
- D. X-rays production
Explanation
In the photoelectric effect, photons transfer energy to electrons and eject them from a metal. In X-ray production, high-speed electrons lose energy at a target and that energy is emitted as photons, so it is commonly described as the reverse process. The likely mistake is choosing Compton effect, which is scattering of photons by electrons, not photon production by electron impact.
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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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