Moderate

Photocell is similar to:

Correct answer: A. Photoelectric effect

  • A. Photoelectric effect
  • B. Compton effect
  • C. Photoluminescence
  • D. None of these options are correct

Explanation

Modern devices that use the photoelectric effect are frequently called photocells. These devices include a metal that will emit the electrons when light strikes it and another metal plate. The energy of photoelectrons can be changed by placing a voltage across the two metal plates.

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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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