In photoelectric effect, threshold energy is equal to KE of ejected electron Energy of striking photon Energy of striking photon - KE of ejected electron Energy of striking photon + KE of ejected electron
Answers
Explanation:
The kinetic energy of an ejected electron equals the photon energy minus the binding energy of the electron in the specific material. An individual photon can give all of its energy to an electron. The photon's energy is partly used to break the electron away from the material.
Answer:
Kinetic energy: W=E
W = the work function.
E stands for photon energy.
The photoelectric effect is a process wherein electrons are released from the surface of the metal when a sufficient frequency of light is impressed onto it. The term "photon" or "quanta," refers to the energy carried by each light particle, depending on how the light's frequency is described.
E=hv
where,
E is the energy of a photon or light particle.
Planck's constant is H. The Planck constant has a value of 6.62611034Js.
= Light Frequency
The process of removing the electron from the metal atom uses some of the energy, and the remaining energy is transferred as kinetic energy to the expelled electron. When they collide, electrons that have been discharged from beneath the metal's surface retain little of their kinetic energy. The photon's surface, which has the most kinetic energy, contains electrons carrying all of the kinetic energy.
By summing the energy required to remove an electron and the maximal kinetic energy of the electron, we may mathematically quantify the photon energy.
∴E=W+KE
We are aware that
E = hv,
h=W+KE.
∴KE=hν−W