Compton effect proves the________________?
Correct answer: A. Photon theory of light
- A. Photon theory of light
- B. Dual nature of light
- C. Wave nature of light
- D. Uncertain nature of light
Explanation
The Compton effect shows that light transfers momentum to electrons as if it consists of photons, supporting the photon or particle theory of light. The wavelength shift follows from conservation of energy and momentum in a photon-electron collision. Students may choose dual nature because Compton scattering contributes to that broader idea, but the direct conclusion tested here is photon theory.
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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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