Photons are quantum waves of light that exhibit wave-like and particle-like properties. They are responsible for the characteristics of light, including its emi...
Photons are quantum waves of light that exhibit wave-like and particle-like properties. They are responsible for the characteristics of light, including its emission, reflection, and absorption. Photons are characterized by their energy, momentum, and angular momentum.
The energy of a photon is directly proportional to its frequency, and it is inversely proportional to its wavelength. This means that higher-frequency photons have shorter wavelengths, while lower-frequency photons have longer wavelengths.
The momentum of a photon is equal to its energy divided by its speed. This means that photons with higher energies have higher momenta.
The angular momentum of a photon is related to the direction of its emission and absorption. In the case of light, the angular momentum is related to the direction of the electric field vector.
The photoelectric effect is the emission of electrons from a metal surface when light is incident on it. The threshold frequency for the photoelectric effect is the minimum frequency of light that is required to cause this effect.
The photoelectric effect provides evidence for the existence of photons and the particle-like nature of light. It also demonstrates that the energy of light is not continuous but is divided into discrete packets