Which phenomenon does not verify the particle nature of light?
Correct answer: D. Diffraction
- A. Photoelectric effect
- B. Compton effect
- C. Pair production
- D. Diffraction
Explanation
The correct answer is diffraction. Diffraction is a phenomenon in which light bends around obstacles or through slits, which is a characteristic of waves. The other three phenomena, the photoelectric effect, pair production, and Compton scattering, all demonstrate the particle nature of light.
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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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