According to Einstein light travels form one place to another in the form of ________________?
Correct answer: C. photons
- A. waves
- B. particles
- C. photons
- D. it was not his discovery
Explanation
Einstein explained the photoelectric effect by treating light as discrete packets of energy called photons, with each photon carrying energy E = hf. Students may choose waves because light also has wave behaviour, but this question refers to Einstein's particle model 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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