The energy of a photon is directly proportional to its _.
Correct answer: B. Frequency
- A. Temperature
- B. Frequency
- C. Wave length
- D. None of the above
Explanation
The energy of a photon is given by the equation:E = hfwhere E is the energy of the photon, h is Planck's constant, and f is the frequency of the photon.From this equation, we can see that the energy of a photon is directly proportional to its frequency.
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About Dawn of Modern Physics
Classical physics cannot explain blackbody radiation and related observations, leading to Planck’s quantum theory, in which energy is emitted or absorbed in discrete packets. Photons provide the particle model of light, with energy and momentum linked to frequency and wavelength, including the photoelectric effect and its threshold frequency.
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