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Question: Answered & Verified by Expert
In photoelectric effect, the electrons are ejected from metals if the incident light has a certain minimum
PhysicsDual Nature of MatterJIPMERJIPMER 2008
Options:
  • A wavelength
  • B frequency
  • C amplitude
  • D angle of incidence
Solution:
1411 Upvotes Verified Answer
The correct answer is: frequency
In photoelectric effect for a given photosensitive material, there exists a certain minimum cut-off frequency, called the threshold frequency, below which no emission of photoelectrons takes place no matter how intense the light is.

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