i_island0 said:
The photoelectric effect angle refers to the angle at which a photon strikes a metal surface, causing the emission of electrons. It is measured with respect to the surface normal of the metal.
The angle of incidence has a significant impact on the photoelectric effect. As the angle increases, the number of emitted electrons decreases due to a decrease in the effective cross-sectional area of the metal surface exposed to the incident photon.
The critical angle in the photoelectric effect refers to the angle at which the energy of the incident photon is just enough to overcome the work function of the metal and cause the emission of electrons. Beyond this angle, no electrons are emitted.
The material of the metal has a significant impact on the photoelectric effect angle. Metals with lower work functions require less energy from the incident photon, resulting in a larger range of angles at which electrons can be emitted. On the other hand, metals with higher work functions have a smaller range of angles for electron emission.
The angle of incidence and the kinetic energy of the emitted electrons are directly proportional in the photoelectric effect. As the angle of incidence increases, the kinetic energy of the emitted electrons decreases, since a smaller area of the metal surface is exposed to the incident photon.