The frequency of the incident photon after the Compton effect will:
Correct answer: C. Decreases
- A. Remain constant
- B. Increases
- C. Decreases
- D. None of these
Explanation
In the Compton effect, the frequency of the incident photon decreases. This occurs because when the incident photon collides with an electron, it transfers some of its energy to the electron. As a result, the photon's wavelength increases, which corresponds to a decrease in frequency according to the relationship between frequency and wavelength in electromagnetic waves.
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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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