The kinetic energy of emitted electrons in photoelectric effect can be increased by increasing _
Correct answer: B. frequency of electromagnetic wave
- A. applied potential of electrodes
- B. frequency of electromagnetic wave
- C. intensity of incident light
- D. momentum of incident photon
Explanation
The kinetic energy of emitted electrons in the photoelectric effect can be increased by increasing the frequency of the electromagnetic wave.
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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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