Photoelectric Effect (max kinetic energy)

The Photoelectric Effect (max kinetic energy) or photoemission is the production of electrons or other free carriers when light is shone onto a material. Electrons emitted in this manner can be called photoelectrons. The phenomenon is commonly studied in electronic physics, as well as in fields of chemistry, such as quantum chemistry or electrochemistry.
The maximum kinetic energy of an ejected electron is `K_(max)=h(f-f_0)`, where:

• `h` = Planck's constant
• `f` = frequency of the incident photon
• `f_0` = threshold frequency of the metal

References

Wikipedia (https://en.wikipedia.org/wiki/Photoelectric_effect)