As per 2nd photoelectric experiment, photoelectric effect does not occur if the frequency of the incident light is?
Correct answer: A. Below the threshold frequency
- A. Below the threshold frequency
- B. Equals the threshold frequency
- C. Three times the threshold frequency
- D. Twice the threshold frequency
Explanation
The photoelectric effect does not occur if the frequency of the incident light is below the threshold frequency of the material.
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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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