It is possible to see photoelectric effect with red light?
Answers
Answer:
No, it is not possible but due to present technology it may be possible.
Explanation:
The photons in red light to not have the necessary energy required to rip an electron out of its orbital (this needed energy is equal to the electron's "work function") due to the large wavelength and low energy of the red light.
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Photoelectric Effect – The Physics Hypertextbook The potential at which this occurs is called the stopping potential . It is a measure of the maximum kinetic energy of the electrons emitted as a result of the photoelectric effect. ... Red light does not eject photoelectrons (even if it is very bright). Green light does eject photoelectrons (even if it is very dim).